Meanwhile, axons with larger diameters offer less internal resistance.

同时，直径较长的轴突拥有较小的内部阻力。

The author is the same anonymous administration official who wrote last year of internal resistance to the president.

作者还是那位匿名的政府官员，他去年写道对总统的内部阻力。

In a circuit, you model this effect as an internal resistance between the battery’s terminals.

在电路中，您将此效应建模为电池端子之间的内阻。

Now, let's say that the battery has an internal resistance of 1 Ohm.

现在假设电池有一个内部 1欧姆的电阻。

Now, let’s say that the battery has an internal resistance of 1 Ohm.

现在，假设电池的内阻为 1 欧姆。

In a circuit, you model this effect as an internal resistance between the battery's terminals.

在电路中，您可以将此效应建模为电池端子之间的内阻。

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。

From this equation, you can see that the internal resistance causes the battery to use about 14 milliWatts of power.

从这个等式中，您可以推断出内部电阻导致电池使用大约 14 毫瓦的功率。

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。

Today we learned about batteries, and how terminal voltage results from the natural internal resistance of every real battery.

今天我们了解了电池，以及终端电压是如何由任何真实电池的自然内阻产生的。

For example, say you have a 12 Volt battery with no internal resistance, and it’s connected in a circuit with a resistor of 100 Ohms.

例如，假设您有一个没有内阻的 12 伏电池， 它连接在一个带有 100 欧姆电阻的电路中。

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”。

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。

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.

但由于我们不知道内阻两端的电压降， 您可以使用欧姆定律， 用“电流乘以电阻” 代替电压。

For example, say you have a 12 Volt battery with no internal resistance, and it's connected in a circuit with a resistor of 100 Ohms.

假设您有一个没有内部电阻的 12 伏电池，并且它连接在一个电阻为 100 欧姆的电路中。

The internal resistance is typically much smaller than the resistance of any connected devices, so the terminal voltage is usually only a little bit less than the emf voltage.

内阻通常远小于所有连接器件的电阻，因此端电压通常只比电动势电压小一点点。

Now, to find out exactly how much power is lost to the battery’s internal resistance, you can use the power expression we used in our last lesson: power equals current times voltage.

现在，要准确了解电池内阻损失了多少功率，您可以使用我们在上一课中使用的功率表达式：功率等于电流乘以电压。