How magnets work

When you hold a magnet near different things, iron and some other metals are pulled toward it while other things are not. The pull works even across a gap, and it grows stronger the closer the magnet comes. A magnet has a north pole and a south pole: unlike poles pull each other, and like poles push each other away. If you hold an iron nail against a magnet, the nail itself becomes a magnet and can move a compass needle or pick up iron sand. Pulling and pushing like this is what a magnet does.

There is no news for this topic yet.