| 单词 | resistor |
| 例句 | And my electronics kit provided the answer: resistors. The Martian 2011-01-01T00:00:00Z The two Specials with the eye-reader had reached the resistors’ comer of the pen. Uglies 2005-02-08T00:00:00Z “I see we had you among the resistors?” Uglies 2005-02-08T00:00:00Z Getting the voltage right was a simple matter of adding resistors, which my electronics kit has in abundance. The Martian 2011-01-01T00:00:00Z “Armed resistor,” he said to the two cruel pretties who guarded this end of the pen, and shoved her down to the ground among the others. Uglies 2005-02-08T00:00:00Z Inside each are gears, lenses, fuses, springs, shackles, and resistors. All the Light We Cannot See 2014-05-06T00:00:00Z So the rest of the energy goes through resistors. The Martian 2011-01-01T00:00:00Z They marched straight to the resistors’ comer and dumped her onto the ground. Uglies 2005-02-08T00:00:00Z He charms the druggist’s wife into giving him a broken earphone; he salvages a solenoid from a discarded doorbell, solders it to a resistor, and makes a loudspeaker. All the Light We Cannot See 2014-05-06T00:00:00Z Maybe it’s wax dripping from the condenser or charcoal built up on a resistor. All the Light We Cannot See 2014-05-06T00:00:00Z Turns out 9,308 blankets were sold before it was discovered that some percentage of the controller units had been manufactured with faulty resistors. Things Not Seen 2002-01-01T00:00:00Z He glances at the diagram and says, "Leo? Take a look at the value for that third resistor—is that a two or a five?" Things Not Seen 2002-01-01T00:00:00Z "This resistor is way outside its parameters. It's letting about six times too much power through!" Things Not Seen 2002-01-01T00:00:00Z While trying to build a device to record heartbeats in 1956, he accidentally installed the wrong type of resistor into his prototype – which promptly began to emit regular electrical pulses. From Viagra to Valium, the drugs that were discovered by accident 2017-07-10T04:00:00Z There’s only so much room for someone like him these days: in essence, he’s a resistor. 8Ball’s Album ‘Life’s Quest’ Returns to Classic Southern Rap 2012-08-10T14:00:57Z This is because the components they are constructed with — resistors and capacitors and inductors and such — are themselves inexact. From “phreaks” to Apple: Steve Jobs and Steve Wozniak’s “eureka!” moment 2013-02-16T14:00:00Z They were built on a workbench, using transistors, resistors, capacitors, lots of wires and a soldering iron. Play on: Google posts synthesizer tribute to Moog 2012-05-23T21:02:47Z And they electrified all of it; you can still find their resistors — little white porcelain toadstools — scattered on the forest floor. In France, Vestiges of the Great War’s Bloody End 2014-12-24T05:00:00Z Marvelous circuits of prose inductors, resistors and switches simulate ordinary history so nearly as to make readers forget the real thing. Steven Johnson on How Play Shaped the World 2016-11-22T05:00:00Z Unfortunately, when you buy a resistor, you can’t get one that is exactly 1000 ohms; rather, it is guaranteed to be only within 10 percent of that value. From “phreaks” to Apple: Steve Jobs and Steve Wozniak’s “eureka!” moment 2013-02-16T14:00:00Z White, female Trump resistors showed various reactions — besides just crying, drinking, and sleeping a lot — to their peers’ disappointing voting proclivities. Ilana’s anorgasmia in “Broad City” Season 4 will be the perfect analogy for white women’s... 2017-09-09T04:00:00Z In an interview with Al Jazeera, he said "not a single bullet" had been fired - because "there are no resistors or detainees" inside. What we know about Israel's raid on al-Shifa hospital 2023-11-15T05:00:00Z Another theory suggests that, in the photograph, Yang was alluding to Chinese resistors during the Second Sino-Japanese War. At Cascadia Art Museum, a noted midcentury photographer gets his due 2023-11-02T04:00:00Z A temperature-dependent resistor, or thermistor, senses the temperature, which controls the smell’s intensity. Virtual Reality System Lets You Stop and Smell the Roses 2023-05-09T04:00:00Z Then there's Ethylhexyl acrylate, a chemical used in paint binding and stain resistors that can irritate the lungs, throat, eyes and skin if inhaled or touched. A truck overturned while carrying toxic soil from the East Palestine chemical spill: report 2023-04-11T04:00:00Z Some of those same resistors celebrated Mr. McCarthy’s decision to give the footage to Mr. Carlson. Giving Jan. 6 Tapes to Carlson, McCarthy Keeps a Promise to the Hard Right 2023-02-22T05:00:00Z It goes on to describe intelligence shared by an Enbridge employee, detailing the movements of various groups of pipeline resistors. Documents show how a pipeline company paid Minnesota millions to police protests 2023-02-19T05:00:00Z Then there's ethylhexyl acrylate, a chemical used in paint binding and stain resistors. Why the train wreck in Ohio is such a major public health disaster 2023-02-15T05:00:00Z In "American Midnight," I was drawn to the resistors during what was a very unequal and oppressive time in the country's history. Adam Hochschild on history and the orange man: "We haven't had a figure exactly like him before" 2022-10-24T04:00:00Z The business, then called Kyoto Ceramic Company, got its first big break when it received an order to make resistor rods for the Apollo space program. Kazuo Inamori, Major Industrialist in Postwar Japan, Dies at 90 2022-09-02T04:00:00Z Additionally, the myelinated regions transmit electrical signals at a very high speed, as an ordinary conductor or resistor would. College Physics for AP Courses 2015-08-12T00:00:00Z Electronics The resistance of a circuit formed by connecting two resistors in parallel is 1 . Elementary Algebra 2020-04-22T00:00:00Z The electrical resistance R produced by wiring resistors R1 and R2 in parallel can be calculated from the formula 1 = 1 + 1 . Calculus, Volume 3 2016-03-30T00:00:00Z Kirchhoff’s Loop Rule states that the sum of the voltage drops across resistors, inductors, and capacitors is equal to the total electromotive force in a closed circuit. Calculus, Vol 2 2016-03-30T00:00:00Z The package will include more long-range artillery systems and ammunition, Kirby said, predicting that such weapons would help Ukrainian resistors “retake that territory” Russia seeks to annex. Russia seeks to annex Ukraine’s east, south later this year, U.S. says 2022-07-19T04:00:00Z The table below gives the voltages and currents recorded across a resistor. College Physics for AP Courses 2015-08-12T00:00:00Z "Not me and you personally," he added, "but I'm not going to criticize the West for sending weapons to the Ukrainian resistors." Antiwar voices call for diplomacy in Ukraine, not just "weapons, weapons, weapons" 2022-04-08T04:00:00Z They assembled a small network by randomly wiring together 16 common electrical components called adjustable resistors, like so many pipe cleaners. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z The voltage drop across the resistor is given by ER = Ri = 5i. Calculus, Vol 2 2016-03-30T00:00:00Z As a young resistor in Czechoslovakia in 1968, Havel had delivered radio addresses denouncing the Soviet invasion, before the radio station was shut down. When Soviets invaded Czechoslovakia, Nixon promised not to ‘embarrass’ LBJ 2022-03-01T05:00:00Z The values of currents and electric potential differences in an electric circuit are determined by the properties and arrangement of the individual circuit elements such as sources of emf, resistors, and capacitors. College Physics for AP Courses 2015-08-12T00:00:00Z Guns would be seized, resistors arrested, and the population culled in death camps. The road to Jan. 6: How 50 years of violent white nationalism inspired the Oath Keepers 2022-01-27T05:00:00Z Each resistor serves as an edge in the network, and the nodes are the junctions where the resistors’ leads meet. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z That is why a mandate was needed, even if it drove a few resistors into the unemployment line. Vaccine mandates are working 2021-10-22T04:00:00Z Pelosi does not direct law enforcement in the House, and Capitol Police officials, who do, aren’t threatening to arrest mask resistors. AP FACT CHECK: No, Pelosi is not out to arrest mask refusers 2021-07-30T04:00:00Z Most circuits have more than one component, called a resistor that limits the flow of charge in the circuit. College Physics for AP Courses 2015-08-12T00:00:00Z Not all the resistors are scions of the Republican elite, of course. Opinion | Liz Cheney, Mitt Romney and the last stand of Republican royalty 2021-05-06T04:00:00Z By adjusting the resistors, the automated network learned to produce the desired outputs for a given set of inputs. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z In some classes, students are divided into groups according to their status as “oppressors” and “victims,” “privileged” or “resistors,” based on immutable characteristics such as the color of their skin. ‘It’s everywhere’: Parents group fights left-wing indoctrination in schools 2021-03-30T04:00:00Z In the 1960s, Sandia Laboratories also used Möbius bands in the design of adaptable electronic resistors. The Timeless Journey of the Möbius Strip 2021-01-16T05:00:00Z The simplest combinations of resistors are the series and parallel connections illustrated in Figure 21.2. College Physics for AP Courses 2015-08-12T00:00:00Z I was also a longhair war resistor and draft counselor in the chaplain's office. Student debt and the end of the liberal arts dream 2020-09-13T04:00:00Z The system only needs to compare the voltage drop across corresponding resistors in the clamped and free networks, using a relatively simple electrical widget called a comparator, Dillavou says. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z After Chinese production of a critical building block used in many electronic products dried up, Torrel’s team located a vendor in Malaysia that could make the tiny devices known as resistors. How manufacturer Flex navigated covid shutdowns to keep Apple products and Philips ventilators on the market 2020-07-30T04:00:00Z "Forty-two of those months were spent in solitary confinement with 10 other fine American patriots because the Vietcong labeled us `die hard' resistors," Johnson wrote in 2015. Sam Johnson, former Texas congressman and Vietnam POW, dead at 89 2020-05-27T04:00:00Z The total resistance of a combination of resistors depends on both their individual values and how they are connected. College Physics for AP Courses 2015-08-12T00:00:00Z “Forty-two of those months were spent in solitary confinement with 10 other fine American patriots because the Vietcong labeled us ‘die hard’ resistors,” Johnson wrote in 2015. Sam Johnson, ex-Texas GOP congressman and Vietnam POW, dies 2020-05-27T04:00:00Z It seems unlikely that the resistor network will ever replace standard neural networks, however. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z To Densmore, the modular assembly enabled by systems such as Golden Gate reflects how capacitors and resistors are soldered to a circuit board. How to build a genome 2020-02-23T05:00:00Z The administration says that lone site is a manufacturer of electrical resistor components in Centre County. PFAS water contamination not widespread, Pennsylvania says 2019-12-05T05:00:00Z Figure 21.3 shows resistors in series connected to a voltage source. College Physics for AP Courses 2015-08-12T00:00:00Z But most don’t attend religious services weekly, don’t take the Bible literally and agree with the religious resistors about the spiritual energy of everyday objects. Opinion | Marianne Williamson sounds unusual. But her style is surprisingly mainstream. 2019-07-01T04:00:00Z For one thing, its response to different inputs likely has to vary more dramatically if the resistor network is to match an artificial neural network’s ability to make fine distinctions, Divallou says. Simple electrical circuit learns on its own—with no help from a computer 2022-03-17T04:00:00Z As with an electrical diagram, many pieces are considered to be interchangeable—a resistor is a resistor and a switch is a switch. Decoding the Language of Neurons 2019-07-02T04:00:00Z With the new book, he was exposed to “minuscule transistors, resistors, and capacitors” that he couldn’t remove without them “looking like dust” on camera. The man who takes tech apart – so we can learn how to fix it 2019-03-16T04:00:00Z To verify that resistances in series do indeed add, let us consider the loss of electrical power, called a voltage drop, in each resistor in Figure 21.3. College Physics for AP Courses 2015-08-12T00:00:00Z “This is the same room where Hayden met with his band of resistors.” Opinion | The Black Gun Owner Next Door 2019-03-09T05:00:00Z In the off-season, Brown helps Donald refine his speed and agility with 45-minute workouts laden with core exercises and resistance training, like the drill he performs wearing lateral resistors on his ankles. Aaron Donald Doesn’t Look Like a Defensive Tackle. So He Reinvented the Position. 2019-01-31T05:00:00Z It is completely self-serving for the author to portray himself or herself, along with fellow resistors, as heros. Editorials from around New England 2018-09-07T04:00:00Z Most everyone left on a mandated summer break, but he stayed in the lab and worked on combining a transistor, capacitor and three resistors on a single piece of germanium. Opinion | The Chip That Changed the World 2018-08-26T04:00:00Z Since all of the current must pass through each resistor, it experiences the resistance of each, and resistances in series simply add up. College Physics for AP Courses 2015-08-12T00:00:00Z A group representing World War II fascist resistors called for Fontana’s immediate dismissal. Uproar after Italian minister wants to end anti-racism law 2018-08-03T04:00:00Z With duties going up on capacitors and other basic tech components like resistors, displays, and raw metals, manufacturing products within US borders wouldn’t be feasible for smaller companies. Gadget makers are bracing for Trump’s trade war 2018-06-20T04:00:00Z She encourages resistors to see the redesign as bringing the comforts of home into the office, with multiple choices of seating and décor. Don’t Get Too Used to Your Own Desk 2018-05-15T04:00:00Z The sKan uses thermistors – thermally sensitive resistors – to detect if a suspect region of skin is malignant through thermal heat mapping. Low-cost device to diagnose skin cancer wins international Dyson award 2017-11-09T05:00:00Z In this case, each resistor has the same full current flowing through it. College Physics for AP Courses 2015-08-12T00:00:00Z The researchers fabricated transient resistors, capacitors, transistors and other electronic components. Self-Destructing Circuits Mimic Mission: Impossible Tape 2017-09-08T04:00:00Z But the resistors’ calls to action beg an obvious question: how? Step aside, Antifa. You undermine the Trump resistance | Julian Brave NoiseCat 2017-08-31T04:00:00Z This week’s top resistor comes as a surprise: the US Department of Defense. The Resistance Now: this is the sound of 'repeal and replace' collapsing 2017-07-29T04:00:00Z These observations contrast with predictions from circuit analogues where resistors are wired in parallel23. Using coherence to enhance function in chemical and biophysical systems : Nature : Nature Research 2017-03-28T04:00:00Z Resistors are in parallel when each resistor is connected directly to the voltage source by connecting wires having negligible resistance. College Physics for AP Courses 2015-08-12T00:00:00Z “That’s instead of a bunch of guys sitting here with soldering irons and capacitors and resistors using that old trial and error approach.” JBL at 70: This Northridge operation still knows how to throw sound 2016-12-23T05:00:00Z Most of the other models relied on resistors, which impede electrical currents, inside the cord to reduce volume, but they sometimes failed to work. Many Kids’ Headphones Carry Risk of Hearing Loss, Study Finds 2016-12-06T05:00:00Z At about $85 per kit, the Arduino units are composed of a breadboard, resistors, switches, buzzers and LED lights that allow students to create a variety of projects powered by computer coding. Collegeville high school students learn to program robots 2016-11-21T05:00:00Z Weekends with dad meant spending a lot of time sifting through bins of resistors and capacitors at the local Radio Shack. I hate being an early adopter 2016-10-26T04:00:00Z Each resistor thus has the full voltage of the source applied to it. College Physics for AP Courses 2015-08-12T00:00:00Z By that June, Heydrich was dead, assassinated at the hands of resistors sent by the Czech government in exile, as part of a mission called Operation Anthropoid. Anthropoid Historical Adviser on Why the True Story Matters 2016-08-12T04:00:00Z Vauxhall said the latest recall would involve "improving the overall robustness of the system" rather than simply replacing the resistor and its fuse, which the firm started doing last year. Vauxhall Zafira B cars recalled again over fire risk - BBC News 2016-05-19T04:00:00Z Arranged in a large hall at the back of the private, nonprofit museum were 46 tables covered with resistors, potentiometers, capacitors, wires, wire nuts, wire markers, vacuum tubes and VU meters. ‘I was a geek, a happy geek.’ Hanging out at the Techno-Swap-Fest. 2016-02-29T05:00:00Z That means it's crucial to kill off the entire population with the first course of treatment and hunt down and kill off any resistors. Supercharged Tuberculosis, Made in India 2015-07-06T04:00:00Z Battery testers, such as those in Figure 21.15, use small load resistors to intentionally draw current to determine whether the terminal voltage drops below an acceptable level. College Physics for AP Courses 2015-08-12T00:00:00Z The following week, TIME’s coverage of the story ended, with the Czech resistors found and shot. Anthropoid Historical Adviser on Why the True Story Matters 2016-08-12T04:00:00Z Predicted in 1971 but only developed in 2008, memristors—the term is a portmanteau combining “memory” and “resistor”—possess the strange ability to “remember” how much current previously flowed through it. Computing after Moore’s Law 2015-05-02T04:00:00Z The cooling fan resistor might overheat and melt in those vehicles, increasing the risk of a fire. Kia recalling nearly 87,000 Fortes because of fire risk 2015-01-24T05:00:00Z The professors also wrote about two other kinds of damaging employees: change resistors and alpha types, which particularly resonated with me as a former manager. Avoid These Toxic Employees at Your Scaling Company 2014-10-31T04:00:00Z Figure 21.26 Each of these resistors and voltage sources is traversed from a to b. College Physics for AP Courses 2015-08-12T00:00:00Z Carving a slalom course around, for instance, inviduals with pamphlets for LED lighting and passive resistors, is fun and engaging, as reviewers say. Finally, A Compelling Product For Personal Transportation 2014-10-08T04:00:00Z Twenty-seven of the earlier resistors had changed their minds, among them Tom Sutcliffe, who said the measure would now bring "episcopal femininity", which would enrich the church. Jubilation as Church of England's synod votes to allow female bishops 2014-07-14T04:00:00Z At the height of the film’s dramatic pitch, Rossi captures Bharucha venturing into the occupation to meet with the student resistors, who’ve literally set up camp in what was once his office. Shooting at the Ivory Tower Change resistors might be fine in a slow-growing company, but not so in a scaling company where everything is changing all the time. Avoid These Toxic Employees at Your Scaling Company 2014-10-31T04:00:00Z When a resistor is traversed in the same direction as the current, the change in potential is −IR . College Physics for AP Courses 2015-08-12T00:00:00Z She said this method could be used to produce designs for resistors, inductors, and capacitors, as well as sensors and actuators, which are the electromechanical muscles that allow robots to move around. How To Cook Your Own Homemade Robot 2014-05-31T04:00:00Z He found himself thinking like an electrical engineer in terms of circuits, capacitors, resistors and fuses, until he realized what he was really doing: trying to create a computer out of fluid. A Fluid New Path in Grand Math Challenge 2014-02-27T20:00:00Z Fortunately, this kit will save you a bunch of trips back and forth to RadioShack because it comes with loads of LEDs, resistors, capacitors and other small components. Kits spur minds to invent, build and enjoy 2013-12-21T05:30:58Z Make a functional digital clock with neon bulbs, resistors, capacitors, diodes, wires, and a wall plug. What Does It Take To Be An Expert In Computer Programming? 2013-07-08T14:56:00Z When a resistor is traversed in the direction opposite to the current, the change in potential is +IR . College Physics for AP Courses 2015-08-12T00:00:00Z In leaflets dropped over the town and its environs the government sent a chilling warning to resistors: No one will help you. My colleague died for peace 2013-04-02T16:46:00Z Even as your change initiative becomes part of your business culture, it will still be vulnerable to resistors and criticisms. Change: A Play in Four Acts 2013-03-04T14:14:45Z As the resistor dictum goes, “no one talks, everyone walks.” Two grand jury resistors walk free 2013-02-28T21:19:00Z As was the case with the Northwest grand juries resistors, the grand jury can grant a subpoenaed individual personal immunity; Fifth Amendment rights against self-incrimination are therefore protected, but silence is not. Federal justice and Aaron Swartz’s death 2013-01-16T12:45:00Z By connecting resistors to this galvanometer in different ways, you can use it as either a voltmeter or ammeter that can measure a broad range of voltages or currents. College Physics for AP Courses 2015-08-12T00:00:00Z To get around those problems, Correlator engineers carefully optimized the design and placement of resistors, capacitors, and other components to reduce energy use and ease air cooling. In Chile, Radio Astronomers Install a Lofty Supercomputer 2013-01-02T21:55:00Z A coalition will also weaken the resolve of resistors and potential resistors. Change: A Play in Four Acts 2013-03-04T14:14:45Z On Thursday afternoon the two grand jury resistors were freed. Two grand jury resistors walk free 2013-02-28T21:19:00Z Some see parallels to the middle of the last century, when scientists such as Vannevar Bush were experimenting with ‘analog’ computers made from resistors and capacitors. Simulation: Quantum leaps 2012-11-14T18:21:16.017Z The current flowing through each resistor in a parallel circuit is different, depending on the resistance. College Physics for AP Courses 2015-08-12T00:00:00Z For unknown reasons, the announcement notes, Plante was classified as “different” from the two other Seattle grand jury resistors also taken in to federal custody in recent months. Grand jury resistor Leah released from prison 2012-10-19T19:57:00Z The case of of the Northwest grand jury resistors is now well-known in activist and anarchist circles around the country. Third Northwest activist jailed for staying silent 2012-10-11T18:18:00Z Even resistors and capacitors are increasingly difficult to get hold of as modern kit is surface mounted. Vintage tech makes modern music 2012-10-07T23:36:26Z Electronic devices are close to this extreme, as they contain only a few types of parts, like resistors, capacitors, and transistors. Another Perspective on Massive Brain Simulations 2012-06-11T16:15:00.407Z Both can be based on the combination of a resistor and a galvanometer, a device that gives an analog reading of current. College Physics for AP Courses 2015-08-12T00:00:00Z Following her release, Plante now seeks to shift attention and support to her fellow grand jury resistors. Grand jury resistor Leah released from prison 2012-10-19T19:57:00Z In January, facing a $15 million penalty from the state for failure to comply, the Tucson resistors threw down their arms. On Education: Racial Lens Used to Cull Curriculum in Arizona 2012-03-19T05:27:18Z “A lot of electronics components are purely commodities: circuit boards, resistors, chips, transistors, wires,” said Huston. Companies Get New Tools To Calculate Carbon Footprint 2011-10-04T15:38:53Z We’ll assume that each model is valid for all neurons of that type in all normal brain, much as we assume that all resistors behave the same way in any electronic device. Another Perspective on Massive Brain Simulations 2012-06-11T16:15:00.407Z Suppose you are doing a physics lab that asks you to put a resistor into a circuit, but all the resistors supplied have a larger resistance than the requested value. College Physics for AP Courses 2015-08-12T00:00:00Z The statement from Plante’s support network Friday noted that the freed grand jury resistor “urges people to step up support for Matt and Kteeo on all fronts.” Grand jury resistor Leah released from prison 2012-10-19T19:57:00Z While building a heart rhythm recording device for the Chronic Disease Research Institute there, he reached into a box of parts for a resistor to complete the circuitry. Wilson Greatbatch, Pacemaker Inventor, Dies at 92 2011-09-28T05:14:13Z They are considered to be the fourth fundamental component of electronics, joining the well-established resistor, capacitor, and inductor. Circuit 'missing link' laid bare 2011-05-16T11:18:04Z Another piece of good advice is to start with the smaller components, such as resistors, that sit closest to the board. 8-bit obsession 2011-04-28T08:42:59Z Draw one for charging an initially uncharged capacitor in series with a resistor, as in the circuit in Figure 21.41, starting from t = 0 . College Physics for AP Courses 2015-08-12T00:00:00Z If you happen to be one of the resistors, it’s time to get over it. 7 Tips For Internship Preparation 2011-03-31T16:50:42Z It makes electronic components such as capacitors, diodes, resistors and transistors. Four Stocks to Buy, Hold During Treacherous Times: John Dorfman 2011-03-27T23:05:59Z The disciplinary hearing was told Mr Hersey was teaching a student a rhyme to help remember the sequence for the colour coding of resistors. Teacher warned for 'racist rhyme' 2011-02-25T19:51:42Z Nonviolent resistance, Sharp acknowledges, requires enormous dedication, courage and hard work, all of which may culminate in failure, including the death of resistors. Egypt's revolution vindicates Gene Sharp's theory of nonviolent activism 2011-02-11T20:45:06.310Z A “bleeder resistor” is therefore placed across such a capacitor, as shown schematically in Figure 21.53, to bleed the charge from it after the apparatus is off. College Physics for AP Courses 2015-08-12T00:00:00Z The device is similar to noise cancelling headphones, but while they work on analogue technology - using resistors to suppress low frequency sounds - this device is digital. Device 'muffles dentist's drill' 2011-01-10T02:14:33Z H.P. and the Rice scientists are making what are called memristors, or memory resistors, switches that retain information without a source of power. Advances Offer Path to Shrink Computer Chip 2010-08-31T02:18:00Z The tiny devices are the "fourth" basic building block of circuits, after capacitors, resistors and inductors. HP shows 'memory of the future' 2010-04-08T18:49:00Z He snapped open the back of the unit and studied the maze of transistors, resistors, and capacitators. The Quantum Jump Rearranging the resistors so all three are in series. College Physics for AP Courses 2015-08-12T00:00:00Z The resistors began heating up swiftly as more and more current flowed through them. The Ultimate Weapon I’d come back here to get a small resistor, and all of a sudden there he was.” Unwise Child Couple of resistors equal at the right temperature. Question of Comfort If there was something wrong it was subtle, like a burned out resistor or a shorted condenser. The Quantum Jump Find the power dissipated in each resistor and hence the total power dissipated in all the resistors. College Physics for AP Courses 2015-08-12T00:00:00Z He threw another switch which shorted around the coronium resistor and the ammeter, allowing the current to run into the coil directly from the plate. Islands of Space Then he lost control with too much tension or fatigue and began getting a bunch of assorted junk, such as old 201-A tubes, a transit, a crystal vase and resistors. The Sky Is Falling But if you should move any part of it after it cools, all of the organic parts, like the circuit boards, the insulation, the carbon resistors, etc., will oxidize and disappear as gas. Tom Swift and The Visitor from Planet X This made an excellent material for electrical resistors. Artificial Light Its Influence upon Civilization If the values of all the resistors and the source voltage are doubled, what will be the effect on the current? College Physics for AP Courses 2015-08-12T00:00:00Z Variable resistors are also called resistance boxes and more often rheostats. The Radio Amateur's Hand Book Wireheads are known for their ability to lash up an Ethernet terminator from spare resistors, for example. The Jargon File, Version 4.2.2, 20 Aug 2000 Current in the resistor alternates back and forth just like the driving voltage, since I = V/R . College Physics for AP Courses 2015-08-12T00:00:00Z If the resistor is a fluorescent light bulb, for example, it brightens and dims 120 times per second as the current repeatedly goes through zero. College Physics for AP Courses 2015-08-12T00:00:00Z Current through and voltage across the resistor increase. College Physics for AP Courses 2015-08-12T00:00:00Z There is a voltage or IR drop across a resistor, caused by the current flowing through it, given by V = IR . College Physics for AP Courses 2015-08-12T00:00:00Z Is there any change in current as it passes through a resistor? College Physics for AP Courses 2015-08-12T00:00:00Z How is the IR drop in a resistor similar to the pressure drop in a fluid flowing through a pipe? College Physics for AP Courses 2015-08-12T00:00:00Z The power dissipated in a resistor is given by P = V 2 / R , which means power decreases if resistance increases. College Physics for AP Courses 2015-08-12T00:00:00Z Many circuits also contain capacitors and inductors, in addition to resistors and an AC voltage source. College Physics for AP Courses 2015-08-12T00:00:00Z An electronic device designed to operate at any temperature in the range from –10.0ºC to 55.0ºC contains pure carbon resistors. College Physics for AP Courses 2015-08-12T00:00:00Z Figure 20.49 The circuit shown contains a resistor R connected to a voltage supply. College Physics for AP Courses 2015-08-12T00:00:00Z In this chapter several series and parallel combinations of resistors are discussed and their effects on currents and potential differences are analyzed. College Physics for AP Courses 2015-08-12T00:00:00Z Kirchoff’s rules are used to calculate currents and potential differences in circuits that combine resistors in series and parallel, and resistors and capacitors. College Physics for AP Courses 2015-08-12T00:00:00Z The voltage and current are exactly in phase in a resistor. College Physics for AP Courses 2015-08-12T00:00:00Z Examples should include circuits that combine resistors in series and parallel. College Physics for AP Courses 2015-08-12T00:00:00Z It seems reasonable that the total resistance is the sum of the individual resistances, considering that the current has to pass through each resistor in sequence. College Physics for AP Courses 2015-08-12T00:00:00Z When resistors are connected in parallel, more current flows from the source than would flow for any of them individually, and so the total resistance is lower. College Physics for AP Courses 2015-08-12T00:00:00Z A circuit with parallel connections has a smaller total resistance than the resistors connected in series. College Physics for AP Courses 2015-08-12T00:00:00Z The resistance of a resistor, and the capacitance of a capacitor, can be understood from the basic properties of electric fields and forces, as well as the properties of materials and their geometry. College Physics for AP Courses 2015-08-12T00:00:00Z Let us use P = V 2 , since each resistor gets full voltage. College Physics for AP Courses 2015-08-12T00:00:00Z Figure 21.5 This combination of seven resistors has both series and parallel parts. College Physics for AP Courses 2015-08-12T00:00:00Z Draw the other for discharging a capacitor through a resistor, as in the circuit in Figure 21.42, starting at t = 0 , with an initial charge Q0 . College Physics for AP Courses 2015-08-12T00:00:00Z If the source voltage is 24 V, what will be the percentage of total current in one of the 2.4-kΩ resistors? College Physics for AP Courses 2015-08-12T00:00:00Z An object that has simple resistance is called a resistor, even if its resistance is small. College Physics for AP Courses 2015-08-12T00:00:00Z Current through and voltage across the resistor decrease. College Physics for AP Courses 2015-08-12T00:00:00Z Current through and voltage across the resistor first increase and then decrease. College Physics for AP Courses 2015-08-12T00:00:00Z Current through and voltage across the resistor first decrease and then increase. College Physics for AP Courses 2015-08-12T00:00:00Z Consider the area enclosed by the moving rod, rails, and resistor. College Physics for AP Courses 2015-08-12T00:00:00Z A simple circuit has a single voltage source and a single resistor. College Physics for AP Courses 2015-08-12T00:00:00Z A simple circuit with a resistor and an energy source is an example of such a system. College Physics for AP Courses 2015-08-12T00:00:00Z The resistance of a resistor, and the capacitance of a capacitor, can be understood from the basic properties of electric fields and forces, as well as the properties of materials and their geometry. College Physics for AP Courses 2015-08-12T00:00:00Z When in position 1, the battery, resistor, and inductor are in series and a current is established. College Physics for AP Courses 2015-08-12T00:00:00Z What percentage of the final current I0 flows through an inductor L in series with a resistor R , three time constants after the circuit is completed? College Physics for AP Courses 2015-08-12T00:00:00Z The wires connecting the voltage source to the resistor can be assumed to have negligible resistance, or their resistance can be included in R . College Physics for AP Courses 2015-08-12T00:00:00Z Once current is found, the power dissipated by a resistor can also be found. College Physics for AP Courses 2015-08-12T00:00:00Z The circuit shown in the figure below includes a resistor R in series with a battery along with an ammeter and voltmeter to measure the current and voltage respectively. College Physics for AP Courses 2015-08-12T00:00:00Z Note that the resistors and emfs are traversed by going from a to b. College Physics for AP Courses 2015-08-12T00:00:00Z A voltage source is connected to a resistor R, say, a long wire, and passes a constant current through it. College Physics for AP Courses 2015-08-12T00:00:00Z The zigzag symbol represents the single resistor and includes any resistance in the connections to the voltage source. College Physics for AP Courses 2015-08-12T00:00:00Z Such configurations are limited in accuracy, because the meters alter both the voltage applied to the resistor and the current that flows through it. College Physics for AP Courses 2015-08-12T00:00:00Z When the voltage reaches a threshold value, a current flows through the lamp that dramatically reduces its resistance, and the capacitor discharges through the lamp as if the battery and charging resistor were not there. College Physics for AP Courses 2015-08-12T00:00:00Z Each resistor in a series circuit has the same amount of current flowing through it. College Physics for AP Courses 2015-08-12T00:00:00Z The voltage drop, or power dissipation, across each individual resistor in a series is different, and their combined total adds up to the power source input. College Physics for AP Courses 2015-08-12T00:00:00Z The resistor is like a pipe that reduces pressure and limits flow because of its resistance. College Physics for AP Courses 2015-08-12T00:00:00Z Each resistor in a parallel circuit has the same full voltage of the source applied to it. College Physics for AP Courses 2015-08-12T00:00:00Z Given a battery, an assortment of resistors, and a variety of voltage and current measuring devices, describe how you would determine the internal resistance of the battery. College Physics for AP Courses 2015-08-12T00:00:00Z The rails are stationary relative to B and are connected to a stationary resistor R . College Physics for AP Courses 2015-08-12T00:00:00Z The resistor could be anything from a light bulb to a voltmeter. College Physics for AP Courses 2015-08-12T00:00:00Z Figure 20.11 The voltage drop across a resistor in a simple circuit equals the voltage output of the battery. College Physics for AP Courses 2015-08-12T00:00:00Z Thus the magnetic flux enclosed by the rails, rod, and resistor is increasing. College Physics for AP Courses 2015-08-12T00:00:00Z Figure 23.25 The coil of a DC motor is represented as a resistor in this schematic. College Physics for AP Courses 2015-08-12T00:00:00Z For circuits without a resistor, take R = 0 ; for those without an inductor, take XL = 0 ; and for those without a capacitor, take XC = 0 . College Physics for AP Courses 2015-08-12T00:00:00Z Rather they transfer energy back and forth to one another, with the resistor dissipating exactly what the voltage source puts into the circuit. College Physics for AP Courses 2015-08-12T00:00:00Z In a simple circuit, with one voltage source and a single resistor, the power supplied by the voltage source and that dissipated by the resistor are identical. College Physics for AP Courses 2015-08-12T00:00:00Z |
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