Question

State Lenz's Law. In a closed circuit, the induced current opposes the change in magnetic flux that produced it as per the law of conservation of energy. Justify.

Hint:

Lenz's Law ensures that the induced current opposes the change in flux, maintaining the law of conservation of energy and preventing infinite energy generation.

Answer 1

Step 1: Lenz’s Law states that the direction of the induced current in a conductor is such that it opposes the change in magnetic flux that produces it. This is a manifestation of the law of conservation of energy.
Step 2: The opposition to the change in magnetic flux is due to the fact that if the induced current did not oppose the flux change, it would result in a continuous increase in energy without any mechanism to stop the increase. This would violate the principle of conservation of energy. The induced current creates a magnetic field that opposes the original flux change, thus ensuring energy is conserved.