We also talked about transformers, and how they use mutual inductance to change voltage.

我们还谈到了变器，以及 它们如何使用互感来改变。

Mutual inductance is also used in lots of other things, too – like wireless chargers, for example.

互感也被用于许多其他方面——例如无线充器。

Inductance, by the way, is expressed in units called Henrys.

顺便说一下，感以 称为亨利的单位表示。

Finally, we described how mutual inductance is used in wireless chargers.

最后，我们描述了如何 在无线充器中使用互感。

And because we have an inductance L and a resistance R, we call this configuration an LR circuit.

因为我们有一个感 L 和一个阻 R，所以我们称这种配置为 LR 路。

L is a constant, known as the inductance, signifying how well that specific coil induces an opposing current, depending on its shape and size.

L。L 是一个常数，称为感，表示特定线圈感应反向流的程度，具体取决于其形状和大小 。

All those voltage changes are made using transformers, which take advantage of something called mutual inductance, where a change in the current in one coil leads to a change in emf in another, nearby coil.

所有这些变化都是使用变器进行的，变器利用了一种称为互感的东西，其中一个线圈中的流变化会导致附近另一个线圈的动势发生变化。