Two coils have a mutual inductance . The current changes in the first coil according to equation , where, and . The maximum value of emf in the second coil is
Step 1: Given data
Mutual inductance,
Current,
where,
and
Step 2: Formula used
Emf in the coil,
where is mutual inductance and is the rate of change of current
Step 3: Maximum value of emf in the second coil.
Emf in the coil,
Maximum emf,
The maximum value of emf in the second coil is .
Hence, option B is the correct answer.