All positive test charges between the plates would move from the positive plate to the negative plate.

两个面板之间的所有正测试电荷 它从正极板到负极板。

So we construct the electric field as a series of lines moving from the positive plate to the negative one.

所以我们把场构造成一系列 线从正极板到负极板。

The charge contained by each capacitor is still the same, since the charge on each positive and negative plate is the same for each capacitor.

每个电容器所含的电荷仍然相同，因为每个电容器的每个正负极板上的电荷都是相同的。

This effect carries all the way through, until the last plate of the third capacitor has a negative charge equal and opposite to the first capacitor’s positive plate.

这种效应一直持续到第三个电容器的最后一个极板具有与第一个电容器的正极板相等且相反的负电荷。

But the capacitor hasn’t gained any net charge – there’s just as much positive charge on the positive plate as there is negative charge on the negative one.

但是电容器没有获得任何净电荷——正极板上的正电荷与负极板上的负电荷一样多。

This effect carries all the way through, until the last plate of the third capacitor has a negative charge equal and opposite to the first capacitor's positive plate.

这种效应一直持续，直到第三个电容器的最后一个极板具有与第一个电容器的正极板相等且相反的负电荷。

But the capacitor hasn't gained any net charge – there's just as much positive charge on the positive plate as there is negative charge on the negative one.

但是电容器没有获得总电荷，两个电荷 两块板上的负极和正极是相等的。

If the test charge starts on the positive plate and travels in the direction of the electric force, we can calculate the work done on it, by multiplying the electric force by the distance between the plates.

如果电荷从正极板释放到力 通过将力乘以两个板之间的距离来计算电功。