Electro-magentism

Another fun property of electricity: magentism!

If you send electricity through a conductive cable, it naturally becomes a tiny bit magnetic.

You wouldn't notice though, the effect is very weak.

To enhance it and make the magnet usable, we wind the cable around a metal (usually iron) core (aka a coil).

And boom: electro-magnet!

I'm not going into details about electromagnetism here, but feel free to read up on it.

Electromagnets are used in various applications. We'll see them being used in motors.