Ok, you know those flashlights that you shake to charge the battery? I'm no physics major, but I get the basic idea. The magnet is passed through the coil, creating an electrical current. So here's my question: Imagine I changed the structure of the coil a bit. If I take a series of magnets (arranged in a straight line), wrap a coil around them, and then pass a heavy steel object rapidly over the coil, will it have the same effect? Grant it, the magnets aren't moving inside the coil, but the steel object outside the coil will interact with each magnet inside the coil as it passes over them, creating a traveling flux in the magnetic field inside the coil. So just like in the flashlight, there's an constantly changing magnetic field inside a coil of wires connected to a battery. Will it charge the battery? Thanks!