That’s a total voltage drop of 5 Volts.

这是 5 伏的总压降。

The voltage gain across the battery is 20 Volts, but you don’t know the voltage drops across the resistors.

电池两端的电压增益为 20 伏， 但您不知道电阻两端的电压降。

Thanks to Ohm’s law, you can substitute the voltage drop across each resistor with the current times the resistance.

多亏了欧姆定律， 您可以用电流乘以电阻来代替每个电阻器上的压降。

And this change in potential energy is just like a voltage drop.

而这种势能的变化是一样的 像电压降。

This internal voltage drop, according to Ohm's law, is equal to the current through the circuit times the internal resistance.

根据欧姆定律，这个内部电压降等于通过电路的电流乘以内部电阻。

And while all resistors along the same wire have the same current, they each have different voltages dropping across them.

虽然同一根导线上的所有电阻器都具有相同的电流，但它们各自具有不同的电压。

Every voltage drop peaks at a different time, but the sum will always equal that of the source.

每个电压降在不同的时间达到峰值， 但总和将始终等于源的电压降。

You know that there’s a voltage gain across the battery and a voltage drop across both resistor 2 and resistor 1.

你知道电池两端有电压增益， 电阻 2 和电阻 1 都有电压降。

This internal voltage drop, according to Ohm’s law, is equal to the current through the circuit times the internal resistance.

根据欧姆定律， 这个内部电压降等于通过电路的电流乘以内部电阻。

The voltage drop across each resistor is proportional to its resistance.

每个电阻上的电压降成正比 对他的抵抗。

If you want to find the current through each branch, and the voltage drop across each resistor, you’re gonna need Gustav’s help!

如果你想找到通过每个分支的电流， 以及每个电阻器上的电压降， 你将需要 Gustav 的帮助！

For the same current, the voltage drop across greater resistances is higher than the lower voltage drops for the low resistances.

对于相同的电流，较大电阻器上的电压降高于低电阻器的较低电压降。

So, for a series connection, the current is the same for all resistors, and the voltage drop changes.

因此对于串联电路，所有电阻器的电流相同，并且电压降会发生变化。

Well, remember, batteries supply potential, and then that potential, also called voltage, drops across resistors.

好吧，请记住，电池提供电位，然后该电位（也称为电压）在电阻器上下降。

But the voltage drop across each resistor is different.

但是每个电阻上的电压降 是不同的。

So their voltage drops will still affect how much voltage the circuit can supply to other components that DO need to dissipate power.

因此，它们的电压降仍然会影响电路可以为其他需要耗散功率的组件提供多少电压。

And you calculate the terminal voltage by subtracting the voltage drop due to internal resistance from the supplied emf voltage, designated by a script E.

然后通过从传递的电动势电压中减去由于内部电阻引起的电压降来计算端电压，用字母 E 表示。

And while you're doing that, you can determine both the current through, and the voltage drop across, every single resistor.

当你这样做的时候，你可以确定每个电阻上的电流和电压。

Keep in mind that, for resistors in series, the larger the resistance is, the larger the voltage drop that's required.

请记住，对于串联的电阻器，电阻越大，所需的电压降越大。

But since we don't know the voltage drop across the internal resistance, you can use Ohm's law, and substitute " current times resistance" for the voltage.

但是由于我们不知道内部电阻上的电压降，您可以使用欧姆定律并将电压替换为“电流乘以电阻”。