Question

27. The magnet in figure rotates a shown on a pivot through its centre. At the instant shown, what are the directions of the induced currents? (a) \( A \) to \( B \) and \( C \) to \( D \) (b) \( B \) to \( A \) and \( C \) to \( D \) (c) \( A \) to \( B \) and \( D \) to \( C \) (d) \( B \) to \( A \) and \( D \) to \( C \)

Answer 1

Answer: (b) B to A and C to D

As the N-pole of the magnet moves closer to CD and S-pole moves closer to AB, S pole develops at the end near B and N pole develops at the end near C (Lenz's Law). Induced currents will be from B to A and from C to D.