Question

The south pole of a magnet is brought near a conducting loop. What is the direction of induced current as observed by a person on the other side of the loop?

Answer 1

• Lenz's law: When a closed loop is linked with varying magnetic flux, then some emf is induced in the loop in such way that it opposes the change in magnetic flux.
• As the south pole is brought near to the loop, emf is induced in such a way that it opposes the incoming south pole. So, he loop forms south pole on the side of the magnet, This causes clockwise current in the loop from the side of the magnet.
• Hence, the direction of induced current is anticlockwise on the other side of the loop.