1. The problem statement, all variables and given/known data My class was watching a video on electricity and magnetism, and after showing how current is induced in a loop of wire when a magnet moves through it, our teacher asked us if there is another way to induce current in a loop of wire - he told us that there were in fact two other ways. 2. The attempt at a solution I understand why the magnet induces current - the current opposes the direction of the magnetic field to resist a change in flux. So in order to induce current a different way, my thinking was you had to induce flux without changing the magnetic field. I think a change in area of the loop of wire could also cause an induced current, since Flux = B * A. So, increase or decrease the radius. But I think that only counts as one other way, I'm not sure about how to induce current another way.