Question

Lenz's law is a direct consequence of

• A. The law of conservation of momentum
• B. The law of conservation of charge
• C. The law of conservation of energy
• D. The law of conservation of emf

Answer 1

The correct option is C The law of conservation of energy

Lenz's law states that the current induced in a circuit due to a change or a motion in a magnetic field is so directed as to oppose the change in flux

We know that induced EMF produces a current that opposes the change in flux, because a change in flux means a change in energy.Energy can enter or leave, but not instantaneously.So, Lenz' law is a consequence of the law of conservation of energy.

Therefore, C is correct option