Question

When a bar magnet falling through a metal ring? Will its acceleration be g .Explain?

Answer 1

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when bar magnet reaches at the center of the ring then its acceleration decreases due to the induced emf produced by change in electric flux.

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Answer 2

Answer:

No , acceleration of magnet will not be equal to g . It will be less than ‘g ‘ . This is because as magnet falls amount of magnetic flux linked with the ring changes  . An induced current is developed in the ring which opposes the downward motion of the magnet .After the magnet has crossed the metal ring , amount of magnetic flux linked with the ring goes on decreasing . An induced current is developed in the ring and opposes the fall of magnet . Therefore downward acceleration of magnet continues to be less than ‘ g ’ .

Explanation:

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