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Manipal MET2018PhysicsElectromagnetic Induction

A bar magnet is released into a copper ring directly below it. The acceleration of the magnet will be

Options

  1. Aequal to the acceleration due to gravity at that place
  2. Bless than the acceleration due to gravity at that place
  3. Cgreater than the acceleration due to gravity at that place
  4. Dtwice the acceleration due to gravity at that place

Correct answer

B. less than the acceleration due to gravity at that place

Step-by-step solution

According to Lenz's law acceleration of the magnet will be less than the acceleration due to gravity due to the fact that emf induced in the ring opposes the motion of magnet.

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