一通上电流，这块板就会有磁性。
一股强大的电流被传导经过一块石墨。
A powerful electric current is passed through a piece of graphite.
电源开关的工作原理是让电流脉冲穿过触点和触面之间。
The switch works by passing a pulse of current between the tip and the surface.
总之，感应电动势滞后于电流。
这个测试显示出大脑的电流活动。
电流浪涌损坏了计算机的磁盘驱动器。
图1漏电电流随电压变化的函数图。
Diagram 1: Evolution of leakage current as a function of test voltage.
我们通常都用电流来分解水。
对电流几乎没有阻力的材料。
Material that has almost no resistance to the flow of electricity.
把电流传给电感器，就会产生磁通量。
Pass a current through an inductor, and you create a magnetic flux.
就会产生磁场，也就产生了感应电流。
Somehow the magnetic field generated by it, and it has to be a donating current.
在第一个线圈中感应电流随着时间变化。
由于电阻很大，电路中通过的电流就小。
The resistance being very high, the current in the circuit was low.
如果电流切断，线圈就返回到原来位置。
Should the current be cut, the coil would return to its original position.
同时电流通过电线给电池或者装置充电。
The electricity then flows through a wire to charge or power a battery or device.
然后，研究人员往电线上通过一阵阵电流。
二极管是一种只允许电流单向流动的元件。
A diode is a device which only allows current to flow in one direction.
通过电流加热针的尖端。
在这个房间里没有蓄电池，只有电流转换器。
There are no accumulators in this room, just current transducers.
17秒后，关掉电流。
电阻是任何当电流通过时都能产生电压的元件。
A resistor is any device that, when you pass current through it, creates a voltage.
请再打开电流，快。
我按下这个按钮之后，电流会被转换。
采用电流的方式治疗抑郁症已经不是什么稀奇事。
There is nothing new about the use of electricity to treat depression.
这一过程产生的电流可用于为电池充电。
This generates electrical current that can then be used to charge a battery.
这股电流干扰附近的脑细胞，使它们不能正常工作。
These currents interfere with nearby brain cells and prevent them from firing normally.
然后是随时间而改变的电荷，就是我们知道的电流。
Then there is the change in that charge over time, better known as current.
使用电流，他们可以来回地移动毫微管内的铁粒子。
By applying a current, they were able to shuttle the particle back and forth.
这种变化将以电流的变化的形式会被依次记录下来。
That will, in turn, be registered as a change in electrical current.
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