Inside nearly every electronic device is a simple coil of wire doing a powerful job—it’s called an inductor. Though small and ...

We use it every day, but most of us haven't got a clue how electricity makes things work. What's going on in the wires that make motors move, and heaters heat? Whether it's a toaster or an electric ...

Do you want to build an electric motor? You could probably find just about everything you need for a simple one around your house. Let me show you how to build it and why it works. Start With Magnet ...

Churning with voltage and resembling an explosion at the wire factory, the breaker panel exudes mystique. But it's just a big switch, filled with other smaller ­switches, which lead to the switches ...

The simplest complete circuit is a piece of wire from one end of a battery to the other. An electric current can flow in the wire from one end of the battery to the other, but nothing useful happens.

Working with electricity but don't want to get electrocuted? One Facebook post falsely claims an easy solution. "If you need to work on something electrical but don't know where the breaker panel is, ...

All those "Danger: High Voltage" signs have got a lot to answer for. Voltage is only one part of any story about electricity, and it's not the painful or dangerous part. The real danger for bags of ...