Question

A cylindrical bar magnet is kept along the horizontal axis of a circular coil. If the magnet is rotated about the axis, then ____

• A. A current will be induced in the coil
• B. No current will be induced in the coil
• C. Only emf will be induced in the coil
• D. Emf and current both will be induced in the coil

Answer 1

The correct option is B

No current will be induced in the coil

Current will be induced in a conductor only when there is a change in the magnetic field associated with it. If we rotate the bar magnet along the axis of the circular coil, there is no change in the magnetic field associated with it. Therefore, current will not be induced.