# Can a current be induced in this coil-magnet configuration?

Coil is moving around ring magnet made of two arch shaped magnets with poles opposing each other like so:

Would a current flow in coil? or be canceled out?

• The coil is drawn as an open circuit... for a current to flow the circuit must be closed. Can you clarify what is moving, and in what direction? Commented May 6, 2017 at 5:29

With the coil in open circuit, you will have a voltage difference at its terminals. Let's assume the coil moves cw or that the magnet moves ccw. Seen from front, let's call the bottom blue N pole and the top blue end S pole. The lines of flux are all concentrated in the iron except at the gaps where they extend in the air to jump from one magnet end to the other. Some of those flux lines will be "swiped" by the coil winding. Using $V=lv \times B$ and looking at the sketch it can be seen that Term 2 will be the positive end of the coil and if a load is placed, current would leave the coil form terminal 2 (conventional current flow). Hope my drawing help clarify the idea.