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Question 20173
JEE Physics · Easy

Electromagnetic Induction and Alternating Current: Lenz's Law MCQ

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Lenz's LawEasyQuestion 20173

Question

Lenz's law is a consequence of:
  1. A
    Coulomb's law
  2. B
    Conservation of charge
  3. C
    Conservation of energy
    Correct
  4. D
    Newton's third law

Correct answer

Conservation of energy

Explanation

Lenz's law says the induced current opposes its cause. If it aided the cause, energy would be created from nothing — so opposition is required by energy conservation.

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