Physics PYQ 236 of 288 · Magnetism

Lenz's law is derived from the law of conservation of

  1. AMagnetism
  2. BMomentum
  3. CCharge
  4. DMore than one of the above
  5. ENone of the above

BPSC TRE-3 (Jul 2024)

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Correct answer: (e) None of the above

Explanation

Lenz's law says the induced current always flows so as to oppose the change that causes it. If it helped the change instead, energy would be created from nothing.

So Lenz's law follows from the conservation of energy, which is not among the options: "None of the above".

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