electricity that lights up a bulb looks very different than lightning strikes but they're actually more similar than one might think because they both have electric current so let's understand what ...

This persnickety number determines the strength of magnetic fields. It figures in everything from motors and generators to audio speakers. Oh, and without it we’d live in eternal darkness.

If you turned the page, saw the pictures, and had a mild panic, don't. Sure, we're going to be dealing with electricity, or more specifically the current draw of the various electrical systems in your ...