I've always understood voltage as the difference between two plates. The more i think about it, the more i disagree with it. Wouldn't the voltage induced by a magnet in a generator be, well, voltage? There isn't a difference between two plates, its just the magnetic field interacting with the electric fields of the electrons which moves them, which causes a chain reaction right? So if this is correct, could you get an instance of current through a wire if you just touched it to the negative (most electrons) terminal of a battery because the electrons are trying to push away from each other so they would spread out across the newly attached wire to equalize the distance between each other?