So, for example if I read, what is the capacitance of biomembranes?

举个例子，如果我读到，生物膜的电多少？

Capacitance is unique in this way.

电在这面无二的。

And that's why the full equation for capacitance includes a dielectric constant, K.

因此，全电包含个常数 隔离，K。

So, how can you describe the equivalent capacitance of a circuit like this?

那么，如何描述这样 的电路的效电呢？

Therefore, you can factor out charge, and you’re left with the equation for equivalent capacitance of capacitors connected in series.

因此，您可以排除电荷， 剩下串联电器效电的式。

So for series capacitors, the combined capacitance is less than the weakest individual capacitor.

因此对于串联电器，组合 电小于最弱的单个电器。

Therefore, you can factor out charge, and you're left with the equation for equivalent capacitance of capacitors connected in series.

因此，您可以将电荷分解，剩下的就串联电器的效电。

– unless you stick something between them, which actually increases the capacitance.

除非你在两者之间放置些东西，否则会增加量。

And that’s why the full equation for capacitance includes a dielectric constant, K. So dielectrics can help capacitors hold even more energy.

这就为什么完整的电包括介电常数 K。因此电介质可以帮助电器保持更多的能量。

Well, if you have several capacitors connected in parallel, the overall capacitance of the circuit increases.

好吧，如果你有几个并联的电器，电路的总电会增加。

So to find the equivalent capacitance in this case, just substitute in the charge equation (voltage-times-capacitance) for each voltage across the capacitors.

因此，要在这种情况下找到效电，只需将电器两端的每个电压代入电荷（电压乘以电）即可。

A dielectric is used to increase capacitance while preventing any charge from jumping from plate to plate.

绝缘体用于增加量，同时 防止任何货物从个盘子跳到另个盘子。

And once you've established the geometry of the plates, the capacitance does not change

旦确定了两个板的几何形状，电就不会改变。

And you know that the charge held by each capacitor is equal to the capacitance times the voltage across each one.

而且您知道每个电器所保持的电荷于电乘以每个电器上的电压。

And it works because of two main electrical principles: electric potential energy and capacitance.

它根据两个电气定律运行 两个主要的：电和电势能。

Capacitance uses units of Farads, with one Farad equal to one Coulomb per Volt.

电以法拉为单位测量，其中法拉于 库仑超过伏特。

This value is known as capacitance – how much charge a capacitor is able to hold.

这个值被称为电，电荷量 电器可以纳。

So by inserting an insulating material into our capacitor, we've increased capacitance and can hold more charge, and thus energy, for the same amount of voltage.

通过在电器中引入绝缘材料，我们增加了电，我们能够 它在相同的张力下存储更多的电荷和能量。

So by inserting an insulating material into our capacitor, we’ve increased capacitance and can hold more charge, and thus energy, for the same amount of voltage.

因此，通过在我们的电器中插入绝缘材料， 我们增加了电并且可以纳更多的电荷， 从而在相同的电压下纳更多的能量。

And capacitance is actually determined by the size and shape of a capacitor.

电由电器的大小和形状决定的。