You connect this gate basically to the supply voltage and then this thing starts to conduct.

你基本上把这个门连接到电源电压，然后这个东西开始导电。

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。

By flipping the switch, you've either started or ended a voltage supply, but an inductor in the system delays the current from starting or stopping immediately.

通过拨动开关，您可以启动或终止电压供应，但系统中的电感器会延迟电流立即启动或停止。