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单词 dielectric
例句 dielectric
Other experiments at the Molecular Foundry showed that the material has great potential as a dielectric, an insulating "electron barrier" material commonly used in capacitors for energy storage and computing applications. Scaling up nano for sustainable manufacturing 2023-11-08T05:00:00Z
In a bid to improve and decrease the size of existing devices, physicists around the globe are working on dielectric laser acceleration, also known as nanophotonic accelerators. Milestone: Miniature particle accelerator works 2023-10-18T04:00:00Z
The microstrip line resonator sensor is fabricated on a dielectric substrate, which is an insulator that can efficiently support electrostatic fields, such as ceramic or glass. Sweet Victory: Sensor detects adulteration in honey 2023-10-10T04:00:00Z
Another idea from SpaceX is to make satellites' solar panels more reflective with dielectric mirrors. Study quantifies satellite brightness, challenges ground-based astronomy 2023-10-03T04:00:00Z
They include semiconductors in which conductivity increases with temperature, as well as dielectrics, which are insulators that change their charge properties, or “polarize,” in electric fields. Shape-Shifting, Self-Healing Machines Are Among Us 2023-07-26T04:00:00Z
The researchers then used the dielectric to make stretchy, flexible arrays of transistors, combined into a sensor that was thin and soft like skin. Soft ‘Electronic Skin’ Mimics Our Sense of Touch 2023-05-23T04:00:00Z
Insulating materials, called dielectrics, are commonly used in their construction, as discussed below. College Physics for AP Courses 2015-08-12T00:00:00Z
As a result, the inherent electronic screening, which depends strongly on the electron density, often dominates any effect stemming from the surrounding dielectric environment of the conduction layers. Electronics tuned in twisted bilayer graphene 2020-07-14T04:00:00Z
To solve this mystery, scientists used Mini-RF to measure the electrical property, known as the dielectric constant, of lunar soil on crater floors in the northern hemisphere of the moon. Moon discovery: Radar sheds new light on lunar subsurface 2020-07-06T04:00:00Z
In a study published in 2020, Tee and his colleagues developed a stretchy, transparent dielectric material for use in light-emitting capacitors. Shape-Shifting, Self-Healing Machines Are Among Us 2023-07-26T04:00:00Z
The resulting reflection patterns vary depending on the tissue’s dielectric properties — its capacity to impede electrical currents. MiWEndo Solutions: using microwave technology to improve colonoscopies 2020-06-29T04:00:00Z
There is another benefit to using a dielectric in a capacitor. College Physics for AP Courses 2015-08-12T00:00:00Z
The teams took different paths to perform dielectric engineering on MATBG. Electronics tuned in twisted bilayer graphene 2020-07-14T04:00:00Z
Immersion is most effective, but expensive dielectric fluids are needed to reduce the risk of a short circuit in the battery pack. Cool metric for lithium-ion batteries could spur progress 2020-06-22T04:00:00Z
In EWOD, this is achieved by applying a voltage between a droplet on a thick, hydrophobic dielectric layer and an electrode that is positioned underneath the layer. Droplet motion electrically controlled 2019-08-20T04:00:00Z
That is because the air’s dielectric strength increases as humidity goes up. Analysis | Wicked light show dazzles D.C.’s Virginia suburbs. Here’s how it happened. 2019-08-14T04:00:00Z
If a dielectric is used, perhaps by placing Teflon between the plates of the capacitor in Example 19.8, then the capacitance is greater by the factor κ , which for Teflon is 2.1. College Physics for AP Courses 2015-08-12T00:00:00Z
The dielectric tuning is especially apparent in Stepanov and colleagues’ work. Electronics tuned in twisted bilayer graphene 2020-07-14T04:00:00Z
Optical properties of metal–dielectric–metal microcavities in the THz frequency range. Room-temperature nine-µm-wavelength photodetectors and GHz-frequency heterodyne receivers 2018-03-25T04:00:00Z
The design for this cloak is based dielectric materials, which don’t absorb light, not meta-materials. Turning Teflon Into An Invisibility Cloak 2015-07-15T04:00:00Z
PCBs were widely produced as a dielectric and ingredient in coolant fluids until they were linked to cancer, birth defects and other health problems and banned in 1979. Pentagon puts budget concerns ahead of Fort McClellan troops’ welfare 2015-01-11T05:00:00Z
The dielectric strength imposes a limit on the voltage that can be applied for a given plate separation. College Physics for AP Courses 2015-08-12T00:00:00Z
Addressing this problem will probably become more urgent, because dielectric engineering should lead to even greater sample diversity. Electronics tuned in twisted bilayer graphene 2020-07-14T04:00:00Z
The dielectric insulating fluid is used for transformers and high voltage capacitors. Growing An Organic Double With Solazyme 2014-08-29T04:00:00Z
I am an engineer with experience in these types of technologies; Apple is not using a piezoelectric but some kind of dielectric EAP. Electroactive Lens May Bring SLR Type Camera Features To iPhone 2014-06-24T04:00:00Z
“The W76-l weapons were returned due to the discovery of dielectric material missing from a detonator cable assembly,” the IG says. U.S. Faces Challenges Maintaining Aging Nuclear Arsenal 2014-04-01T02:13:18Z
The more easily it is polarized, the greater its dielectric constant κ . College Physics for AP Courses 2015-08-12T00:00:00Z
Furthermore, in the 1990′s the Galileo spacecraft sensed an induced magnetic field emanating from Europa, consistent with a dielectric substance beneath the surface. Water Erupts Across the Solar System 2014-01-27T14:14:17Z
To learn more about the dynamics of condensed isolated polymer chains, we used broadband dielectric spectroscopy and a capacitor with nanostructured electrodes separated by 35 nanometers. [Report] Glassy Dynamics in Condensed Isolated Polymer Chains 2013-09-19T17:56:41.103Z
It's better to avoid the use of dielectrics altogether and rely on the high-speed nonlinear responses of a metal. Perspective: A glint of the future 2013-03-13T18:21:03.030Z
Although metals are often described as lossy dielectric materials at optical wavelengths, they nevertheless support currents and can be used to form the optical equivalent of patch antennas. Controlled-reflectance surfaces with film-coupled colloidal nanoantennas 2012-12-11T21:22:39.403Z
The polarity of water causes it to have a relatively large dielectric constant of 80. College Physics for AP Courses 2015-08-12T00:00:00Z
Faraday had shown that the passage of electrical action involved time, and he also asserted that electrical phenomena are brought about by changes in intervening non-conductors or dielectric substances. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 "Hearing" to "Helmond" 2012-04-25T02:00:53.567Z
The interposition of the dielectric in this case only slightly increases the inductive effect, but diminishes considerably the electrification through the air. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
One approach to building such devices is to combine metal nanostructures with conventional dielectrics. Perspective: A glint of the future 2013-03-13T18:21:03.030Z
Similarly, the dielectric constants of a non-conducting crystal may be expressed by a sphere, spheroid or ellipsoid. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z
Figure 19.23 shows the separation of charge schematically in the molecules of a dielectric material placed between the charged plates of a capacitor. College Physics for AP Courses 2015-08-12T00:00:00Z
It soon appeared to Faraday that the nature of the dielectric had very much to do with electric induction. Heroes of Science: Physicists 2012-01-17T03:00:17Z
That is the reason why the rate of change is very much greater when glass, for instance, is broken through, than when the break takes place through an air space of equivalent dielectric strength. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
We have to consider in connection with this part of the subject the dielectric strength of air under different pressures and for different thicknesses. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z
Our device uses a complex variation in the effective dielectric constant to generate an asymmetric wave vector q. [Technical Response] Response to Comment on ?Nonreciprocal Light Propagation in a Silicon Photonic Circuit? 2012-01-05T18:55:18.987Z
The capacitor stores the same charge for a smaller voltage, implying that it has a larger capacitance because of the dielectric. College Physics for AP Courses 2015-08-12T00:00:00Z
The capacity of a condenser, for instance, depends on the nature of the dielectric as well as on the configuration of the conductors. Heroes of Science: Physicists 2012-01-17T03:00:17Z
The dielectric should vary enormously in resistance by minute variations of the e. m. f. across the discharge space. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
As the dielectric for such a condenser, only two materials seem to be of any practical use, viz., glass and micanite. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z
The nanowires are coated with a "dielectric," which acts as a gate. New 3D Transistors May Lead to Lighter Laptops 2011-12-28T15:37:00Z
Another way to understand how a dielectric increases capacitance is to consider its effect on the electric field inside the capacitor. College Physics for AP Courses 2015-08-12T00:00:00Z
For electrical purposes it should have a high insulating power and dielectric strength and a low inductive capacity; the possession of these properties is influenced by the resinous constituents present. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 6 "Groups, Theory of" to "Gwyniad" 2011-12-16T03:00:12.320Z
Hence it was thought that a liquid insulator might be more suitable as a dielectric than air. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
If this condenser is charged to 20,000 volts, we have stored up in it half a joule of electric energy, and the volume of the dielectric is 270 cubic centimetres. Hertzian Wave Wireless Telegraphy 2012-01-09T03:00:20.570Z
One potential solution to this leaking problem is to replace silicon dioxide with materials that have a higher insulating value, or "dielectric constant," such as hafnium dioxide or aluminum oxide. New 3D Transistors May Lead to Lighter Laptops 2011-12-28T15:37:00Z
Since the field lines end on charges in the dielectric, there are fewer of them going from one side of the capacitor to the other. College Physics for AP Courses 2015-08-12T00:00:00Z
The team has already made the advanced artificial muscle the foundation for a dielectric elastomer generator —a device for converting mechanical energy into electricity. Taut-Tech: Smaller, Softer Artificial Muscles to Help Bring Power to Toys and Cell Phones 2011-11-09T21:45:02.160Z
He then showed by experiment the difference between a steady and a rapidly varying force upon the dielectric. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
They deposited stripes of acrylic on the metal; varying the width and spacing of the stripes altered the effective dielectric permittivity, an electrical property that governs plasmon propagation. Physicists Simulate the End of Time in a Maryland Lab 2011-07-29T00:15:00.487Z
In the new work, the researchers applied a dielectric coating made of aluminum oxide using a method called atomic layer deposition. New 3D Transistors May Lead to Lighter Laptops 2011-12-28T15:37:00Z
The maximum electric field strength above which an insulating material begins to break down and conduct is called dielectric strength. College Physics for AP Courses 2015-08-12T00:00:00Z
With its last major innovation – metal gates and hi-K dielectrics five years ago – just coming into volume production elsewhere, the 3-D approach dovetails with acute Intel design activity in mobile for the first time. The Intel Vs. Altera Race Is On 2011-05-20T20:59:52Z
It appears almost as though these streams pass through the dielectric. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
The medium he named a dielectric, and measured its specific inductive capacity by taking that of common air as unity. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z
"A thinner dielectric layer means speed goes up and voltage requirements go down," Ye said. New 3D Transistors May Lead to Lighter Laptops 2011-12-28T15:37:00Z
Give the reason why a dielectric material increases capacitance compared with what it would be with air between the plates of a capacitor. College Physics for AP Courses 2015-08-12T00:00:00Z
It should be noted that the strength of the electric field and the mechanical force are numerically equal only when the dielectric constant of the medium is unity. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
But besides the heating due to bombardment, some heating goes on undoubtedly in the dielectric, being apparently greater in glass than in ebonite. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
Electrical transformers, supercomputers and over-clocked gaming computers took the plunge into dielectric fluid submersion several years ago to push performance levels higher. Aquarium-Cooled Data Servers 2011-04-14T00:27:43Z
Under the action of the same or identical electric forces the intensity of this state in various insulators is determined by a quality of them called their dielectric constant, specific inductive capacity or inductivity. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
What is the independent reason that a dielectric material also allows a greater voltage to be applied to a capacitor? College Physics for AP Courses 2015-08-12T00:00:00Z
The coefficient K is called the dielectric constant of the medium, and its value is taken as unity for air. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
By approaching a dielectric, the specific inductive capacity of the space between the spheres is increased, producing the same effect as if the capacity of the spheres were increased. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
An immediate deduction from Maxwell’s theory was that in transparent dielectrics, the dielectric constant or specific inductive capacity should be numerically equal to the square of the refractive index for very long electric waves. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
The value of the dielectric constant is greatly affected by the temperature and the frequency of the applied electric force. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
How does the polar character of water molecules help to explain water’s relatively large dielectric constant? College Physics for AP Courses 2015-08-12T00:00:00Z
Thus if F is the field strength, K the dielectric constant, and U the mechanical force acting on a unit charge, F = KU. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
The greater the specific inductive capacity of the interposed dielectric, the more powerful the effect produced. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
At the time when Maxwell developed his theory the dielectric constants of only a few transparent insulators were known and these were for the most part measured with steady or unidirectional electromotive force. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
We have next to consider the energy storage which takes place when electric charge is created, i.e. when the dielectric is strained or polarized. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Water has a large dielectric constant, but it is rarely used in capacitors. College Physics for AP Courses 2015-08-12T00:00:00Z
The capacity depends not merely on the dimensions of the conductors and the distance between them, but also upon the nature of the dielectric separating them. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
Since it is difficult to exclude the gas perfectly when solid insulators are used, it is necessary to resort to liquid dielectrics. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
On the other hand, the divergence in some cases between the square of the optical refractive index and the dielectric constant was very marked. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
We must, however, assume that the charge Q is so small that it does not sensibly disturb the original electric field, and that the dielectric constant of the insulator is unity. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
What happens to the energy stored in a capacitor connected to a battery when a dielectric is inserted? College Physics for AP Courses 2015-08-12T00:00:00Z
The ratio of the capacity of a condenser with a given dielectric to the capacity it would have with an air dielectric, is called the specific inductive capacity of the dielectric. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
By inserting dielectric bodies between the spheres, beautiful discharge phenomena may be observed. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
For the pitch or resin may be substituted a sheet of glass, ebonite, india-rubber or any other good dielectric placed upon a metallic sheet, called the sole-plate. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
He then determined the ratio of the capacities of the two condensers, one with air and the other with the solid dielectric. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Note that the applied voltage is limited by the dielectric strength. College Physics for AP Courses 2015-08-12T00:00:00Z
Numerically the specific inductive capacity of a dielectric is equal to the dielectric constant already mentioned. The New Gresham Encyclopedia Volume 4, Part 2: Ebert to Estremadura 2011-04-14T02:00:56.200Z
The electrical resonance is the more perfectly attained, the smaller the resistance or the impedance of the conducting path and the more perfect the dielectric. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
To use the apparatus the surface of the dielectric is rubbed with a piece of warm flannel, silk or catskin, so as to electrify it, and the upper metal plate is then placed upon it. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
This gave the dielectric constant K of the material. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Nothing changes, except now there is a dielectric in the capacitor. College Physics for AP Courses 2015-08-12T00:00:00Z
The process delivers a dense, carbon-free dielectric film at up to half the cost of spin-on deposition methods, the company said. Stock Picks: Apple, Applied Materials, Medtronic 2010-08-25T16:32:00Z
This is the way the dielectric in the discharge space should behave. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z
The total current at any point in a dielectric must be considered as made up of two parts: first, the true conduction current, if it exists; and second, the rate of change of dielectric displacement. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
For further information on the qualities of dielectrics the reader is referred to the following sources:—J. Hopkinson, “On the Residual Charge of the Leyden Jar,” Phil. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
An important solution to this difficulty is to put an insulating material, called a dielectric, between the plates of a capacitor and allow d to be as small as possible. College Physics for AP Courses 2015-08-12T00:00:00Z
The sign of the electric charge on the particles of a sol may be either negative or positive, depending upon the chemical nature and dielectric constants of the two phases of the system. The Chemistry of Plant Life
In the case of dielectric conductors and of electrolytes, the action of rising temperature is to reduce resistivity. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric"
In dielectric currents there is no continued movement of electricity, but merely a limited displacement through or in the mass of an insulator or dielectric. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
Fleming and James Dewar on dielectric constants at low temperatures: “On the Dielectric Constant of Liquid Oxygen and Liquid Air,” Proc. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
Polar molecules therefore exhibit greater polarization effects and have greater dielectric constants. College Physics for AP Courses 2015-08-12T00:00:00Z
Water, likewise, has a higher dielectric constant than any other common liquid. The Chemistry of Plant Life
If the electromotive force is increased, in the case of a large number of ordinary dielectrics the apparent resistance at the end of one minute’s electrification decreases as the electromotive force increases. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric"
The path in which an electric current exists is called an electric circuit, and may consist wholly of a conducting body, or partly of a conductor and insulator or dielectric, or wholly of a dielectric. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2 "Ehud" to "Electroscope" 2011-01-29T03:00:23.777Z
For constant charges and distances the mechanical force is inversely as the dielectric constant. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
What happens when a dielectric is inserted into the capacitor? College Physics for AP Courses 2015-08-12T00:00:00Z
Lorentz of Leiden, from considerations based on the Clausius-Mossotti theory of dielectrics. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"
The dielectric is glass while the conducting surfaces are tin-foil, arranged in a pile of alternate sheets of glass and foil. Boy Scouts Handbook The First Edition, 1911
This distribution of stress is the only one consistent with the observed mechanical action on the electrified bodies, and also with the observed equilibrium of the fluid dielectric which surrounds them. The World's Greatest Books — Volume 15 — Science
If the dielectric or separating insulator has a constant K, then the capacity becomes K times as great. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
The energy in the system decreases, making it very easy to move the dielectric in. College Physics for AP Courses 2015-08-12T00:00:00Z
Mossotti found a relation between the dielectric constant and the space actually occupied by the molecules, viz. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 "Châtelet" to "Chicago"
According to Faraday's theory the particles of air, the dielectric, between A and C play a most important part in the process. Aether and Gravitation
That electromotive force acting on a dielectric produces what we call electric displacement. The World's Greatest Books — Volume 15 — Science
By placing metal plates on either side of a larger sheet of dielectric or insulator we can construct a condenser of relatively large capacity. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z
You have to do work to move the dielectric, increasing the energy in the system. College Physics for AP Courses 2015-08-12T00:00:00Z
The dielectric consisted of about equal parts of hard paraffin and vaseline. On Laboratory Arts
Maxwell then went on to show what these physical actions were, which took place in the dielectric--that is, the medium surrounding the electrified body which we now know to be the Aether. Aether and Gravitation
Surfaces separated by a dielectric for opposite charging of the surface. Electricity for Boys
Man had been hunting superior dielectrics for a long time now. Security
Consider a parallel plate capacitor with no dielectric material. College Physics for AP Courses 2015-08-12T00:00:00Z
Two exhaustions, each of about two hours' duration, have, however, in my experience succeeded very well, provided, of course, that the dielectric is prepared as suggested. On Laboratory Arts
I mean the true ethereal waves emitted by the electric oscillation going on in the neighborhood of this recoiling dielectric. Scientific American Supplement, No. 717, September 28, 1889
Finally, it has been found possible to entirely suppress the paper, or dielectric, and to hear directly, by simply interposing the auditor or auditors in the circuit. Scientific American Supplement, No. 441, June 14, 1884.
You see, the dielectric constant of this material isn't constant at all. Security
What happens to the energy of the system and the dielectric material when a dielectric is inserted into the capacitor? College Physics for AP Courses 2015-08-12T00:00:00Z
It therefore makes an excellent dielectric in so far as convenience of construction is concerned in the preparation of condensers, and lends itself freely to the construction of insulating washers or separators of any kind. On Laboratory Arts
Letting go the spring is analogous to permitting a discharge of the jar—permitting the strained dielectric to recover itself, the electrostatic disturbance to subside. Scientific American Supplement, No. 717, September 28, 1889
The insulator of an open-space arrester often is called the dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
For all practical purposes, here was the ultimate dielectric. Security
The range of microwave frequencies is specially selected so that the polar molecules, in trying to keep orienting themselves with the electric field, absorb these energies and increase their temperatures—called dielectric heating. College Physics for AP Courses 2015-08-12T00:00:00Z
Long ago a theory of residual charge was given by Maxwell, based on the consideration of a laminated dielectric, the inductivity and resistance of which varied from layer to layer. On Laboratory Arts
The old and familiar operation of charging a Leyden jar—the storing up of energy in a strained dielectric, any electrostatic charging whatever—is quite analogous to the drawing aside of our flexible spring. Scientific American Supplement, No. 717, September 28, 1889
The arrangement of carbons and dielectric in this device is shown in Fig. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
What was really important was the sort of condensers made possible by a genuinely good dielectric material. Security
The index of refraction of these substances tends in the case of great wave-lengths to become, as the theory anticipates, nearly the square root of the dielectric constant. The New Physics and Its Evolution
Slips of insulating material are laid between the coils and the dovetailed mouths of the grooves are closed with bone or vulcanized fiber, or other dielectric. Scientific American Supplement, No. 841, February 13, 1892
I must observe here that I do not consider the cones produced as the result only of the current of air or other insulating dielectric over their surface. Experimental Researches in Electricity, Volume 1
What is the meaning of the word dielectrics? Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Some dielectrics 0.2 mm. thick can be made to stand up to 8,000 volts when in small pieces, but in complete condensers a much greater margin must be allowed. Scientific American Supplement, No. 795, March 28, 1891
Some attribute this marvellous radiation to longitudinal vibrations, which, as M. Duhem has shown, would be propagated in dielectric media with a speed equal to that of light. The New Physics and Its Evolution
In 1859, he constructed an electric log; he discovered that a dielectric is heated by induction; he introduced the well known Siemens' mercury unit, and many improvements in the manufacture of resistance coils. Heroes of the Telegraph
Flame facilitates the production of a current in the dielectric surrounding it. Experimental Researches in Electricity, Volume 1
State what you understand by the specific inductive capacity of a dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
The first difficulty is insulation, for the dielectric must be very thin, else the volume of the condenser is too great. Scientific American Supplement, No. 795, March 28, 1891
No displacement, therefore, is effected in the dielectric. The New Physics and Its Evolution
Not a single discharge of lightning occurred in its vicinity, a fact which he attributed to the dielectric properties of levium. The Second Deluge
All these effects indicate the curved direction of the currents or discharges which occur in and through the dielectrics, and these are in every case preceded by equivalent inductive actions of the contiguous particles. Experimental Researches in Electricity, Volume 1
A condenser is a device composed of two or more conductors insulated from each other by a medium called the dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
The dielectric loss in a cable may be serious. Scientific American Supplement, No. 795, March 28, 1891
Faraday made, in some sort, an equivalent discovery when he perceived that the electrical energy belongs, not to the coatings of the condenser, but to the dielectric which separates them. The New Physics and Its Evolution
Of course this limit of resistance varies with every dielectric; but we are now dealing only with air at ordinary pressures. Scientific American Supplement, No. 288, July 9, 1881
Another point is the facilitation of electrolytic conducting power or discharge by the addition of substances to the dielectric employed. Experimental Researches in Electricity, Volume 1
We see then that the capacity of a condenser varies as the area of its plates, as the specific inductive capacity of the dielectric employed, and also inversely as the distance between the plates. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Prof. Rucker called attention to the fact that dielectrics alter in volume under electric stress, and said that if the material was imperfectly elastic, some loss would result. Scientific American Supplement, No. 795, March 28, 1891
In the dielectric, the green sparks and spurts of living flame began to crackle and to hiss like living spirits of an unknown power. Darkness and Dawn
Don't use condensers with paper dielectrics for an amplifier receiving set or it will be noisy. The Radio Amateur's Hand Book
Here again, therefore, as in many other qualities, specific differences are presented by different gaseous dielectrics, and so prove the special relation of the latter to the act and the phenomena of induction. Experimental Researches in Electricity, Volume 1
In good enamel wire the insulation will average about one-quarter the thickness of the standard single silk insulation, and the dielectric strength is equal or greater. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
In a transparent dielectric the conduction must be either electrolytic or disruptive, otherwise light vibrations would be damped. Scientific American Supplement, No. 795, March 28, 1891
But after a time electricity was found there, the charge having gradually returned from the dielectric in which it had been lodged. Faraday as a Discoverer
To be really efficient a variometer must have a small resistance and a large inductance as well as a small dielectric loss. The Radio Amateur's Hand Book
The particular action described occurs in the shell-lac of the stems, as well as in the dielectric used within the apparatus. Experimental Researches in Electricity, Volume 1
Of all dielectrics mica is the most suitable for condensers, since it has very high insulation resistance and also high specific inductive capacity, and furthermore may be obtained in very thin sheets. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Thompson asked if Mr. Swinburne had found any dielectric which had no absorption. Scientific American Supplement, No. 795, March 28, 1891
A portion of the charge was absorbed by the dielectric itself. Faraday as a Discoverer
Usually this quality of dielectrics is measured in terms of the same quality in dry air, this being taken as unity. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
I now proceed to examine the great question of specific inductive capacity, i.e. whether different dielectric bodies actually do possess any influence over the degree of induction which takes place through them. Experimental Researches in Electricity, Volume 1
High-grade condensers, such as are used for measurements and standardization purposes, usually have mica for the dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Mr. Kapp considered the loss of power in condensers due to two causes: first, that due to the charge soaking in; and second, to imperfect elasticity of the dielectric. Scientific American Supplement, No. 795, March 28, 1891
The electricity took time to penetrate the dielectric. Faraday as a Discoverer
A very important variation of the relative forms and conditions of the positive and negative brush takes place on varying the dielectric in which they are produced. Experimental Researches in Electricity, Volume 1
Glass in its ordinary state utterly fails; yet it was essentially necessary to obtain this prior degree of perfection in the dielectric used, before any further progress could be made in the principal investigation. Experimental Researches in Electricity, Volume 1
A condenser is a device consisting of two adjacent plates of conducting material, separated by an insulating material, called a dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
The inductive apparatus described is evidently a Leyden phial, with the advantage, however, of having the dielectric or insulating medium changed at pleasure. Experimental Researches in Electricity, Volume 1
Faraday figured their particles as polarized, and he concluded that the force of induction is propagated from particle to particle of the dielectric from the inner sphere to the outer one. Faraday as a Discoverer
Consider an insulated sphere electrified positively and placed in the centre of another and larger sphere uninsulated, a uniform dielectric, as air, intervening. Experimental Researches in Electricity, Volume 1
The particles of silk therefore represent to me the condition of the molecules of the dielectric itself, which I assume to be polar, just as that of the silk is. Experimental Researches in Electricity, Volume 1
The dielectric strength of enamel insulation is much greater than that of either silk or cotton insulation of equal thickness. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
The theory does not assume, however, that all the particles of the dielectric subject to the inductive action are affected to the same amount, or acquire the same tension. Experimental Researches in Electricity, Volume 1
Hence it is clear that the induction is not through the metal, but through the surrounding air or dielectric, and that in curved lines. Experimental Researches in Electricity, Volume 1
Why should not the wire and the air both be regarded as dielectrics; and the action at its commencement, and whilst there is tension, as an inductive action? Experimental Researches in Electricity, Volume 1
The moment of discharge is probably determined by that molecule of the dielectric which, from the circumstances, has its tension most quickly raised up to the maximum intensity. Experimental Researches in Electricity, Volume 1
It is found that the ability of a given charged conductor to induce charges on other neighboring conductors varies largely with the insulating medium or dielectric that separates them. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
In the theory of induction founded upon a molecular action of the dielectric, we have to look to the state of that body principally for the cause and determination of the above effects. Experimental Researches in Electricity, Volume 1
All seem to me to be dielectrics acting alike, and under the same common laws. Experimental Researches in Electricity, Volume 1
First as to the distance between the two balls used, or in other words, the thickness of the dielectric across which the induction was sustained. Experimental Researches in Electricity, Volume 1
The modes of polarization, as I shall have occasion hereafter to show, may be very diverse in different dielectrics. Experimental Researches in Electricity, Volume 1
This quality of a dielectric, by which it enables inductive action to take place between two separated conductors, is called inductive capacity. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
These experiments were then varied by the substitution of a liquid dielectric, namely, oil of turpentine, in place of air and gases. Experimental Researches in Electricity, Volume 1
Comparatively small masses of dielectrics could be examined, as diamonds and crystals. Experimental Researches in Electricity, Volume 1
The following is an example of the division of a charge by the two apparatus, air being the dielectric in both of them. Experimental Researches in Electricity, Volume 1
The ball, when related to the positive charged surface by the intervening dielectric, has its opposite sides brought into contrary states, that side towards the boiler being negative and the outer side positive. Experimental Researches in Electricity, Volume 1
For this purpose thin bond paper, saturated with paraffin, has been found to be the best dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Lastly, I used a few solid dielectrics for the same purpose, and with the same results. Experimental Researches in Electricity, Volume 1
Glass.—I next worked with glass as the dielectric. Experimental Researches in Electricity, Volume 1
It is even possible, that with different electrolytes or dielectrics the ratio may be considerably varied, or in some cases even inverted. Experimental Researches in Electricity, Volume 1
Some of his results I must very briefly notice, premising that they are all obtained with the use of air as the dielectric between the conducting surfaces. Experimental Researches in Electricity, Volume 1
An insulator used in this relation to two conducting surfaces is called the dielectric. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
Why a point should be so exceedingly favourable to the production of currents in a fluid insulating dielectric, as air, is very evident. Experimental Researches in Electricity, Volume 1
On using oil of turpentine as the dielectric, the action and course of small conducting carrying particles in it can be well observed. Experimental Researches in Electricity, Volume 1
When the phenomena of currents are observed in dense insulating dielectrics, they present us with extraordinary degrees of mechanical force. Experimental Researches in Electricity, Volume 1
The opinion, that the effects are more likely to be dependent upon the dielectric than the ball, is supported by the character of the two discharges. Experimental Researches in Electricity, Volume 1
Obviously, when placed in a circuit a condenser offers a complete barrier to the flow of direct current, since no conducting path exists between its terminals, the dielectric offering a very high insulation resistance. Cyclopedia of Telephony & Telegraphy Vol. 1 A General Reference Work on Telephony, etc. etc.
If particles of silk are introduced they cling about the conductors; but using drops of water and mercury the course of the fluid dielectric seems well indicated. Experimental Researches in Electricity, Volume 1
The particles of an insulating dielectric whilst under induction may be compared to a series of small magnetic needles, or more correctly still to a series of small insulated conductors. Experimental Researches in Electricity, Volume 1
Having given this general theoretical view, I will now notice particular points relating to the nature of the assumed electric polarity of the insulating dielectric particles. Experimental Researches in Electricity, Volume 1
As an illustration of the condition of the polarized particles in a dielectric under induction, I may describe an experiment. Experimental Researches in Electricity, Volume 1
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