I'm trying to figure out what kind of inductor to use for a sort of unusual use. An inductor is an electromagnet. My theory is to put a fixed magnet on an axle such that it it can rotate freely. If I then put an inductor under it, I can switch which side of the fixed magnet is up by switching the direction of current in the inductor. The scale of all of this is tiny -- the fixed magnet would probably be the exclamation point from a magnetic poetry set or smaller. I could put the inductor directly under the fixed magnet - perhaps 1 mm away.
The problem is that I can't figure out what size of inductor to buy. I want dozens of these, so I don't really want to mess with building them myself. They're all measured in Henries (or, realistically, microhenries), and I don't know what a microhenry translates to in terms of force at a given current. Can anyone help?