Question

Consider a magnet surround by a wire with a on/of switch S (figure) if the switch is thrown from the off position (open circuit) to the on position (closed circuit.)

• A. The current will flow in clock wise direction as seen from left side
• B. The current will flow in anti clock wise direction as seen from left hand side
• C. The current will not flow
• D. Can not be decided

Answer 1

The correct option is D Can not be decided

No. This is because no part of the wire loop is moving. Hence as a result there is no motivational emf. Further the enclosed magnet is stationary. Therefore the magnetic flux linked with the loop does not change. As a result , no current flows in the circuit.

$\therefore$ Option $D$ is correct.