JEE Physics · Medium

Electromagnetic Induction and Alternating Current: Lenz's Law — Ring MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Lenz's Law — RingMediumQuestion 20184

Question

A magnet is pushed toward a conducting ring. The induced current in the ring will:
  1. A
    Create a south pole facing the approaching north pole of the magnet
  2. B
    Create a north pole facing the approaching north pole (repelling)
    Correct
  3. C
    Create no magnetic pole
  4. D
    Attract the magnet

Correct answer

Create a north pole facing the approaching north pole (repelling)

Explanation

Lenz's law: the induced current must oppose the approach. The ring creates a north face toward the incoming north pole → repulsion. This is the classic demonstration: the ring levitates or is repelled.