Magnetism Question 114

Question: The bob of a simple pendulum is replaced by a magnet. The oscillations are set along the length of the magnet. A copper coil is added so that one pole of the magnet passes in and out of the coil. The coil is short-circuited. Then which one of the following happens

[KCET 1994]

Options:

A) Period decreases

B) Period does not change

C) Oscillations are damped

D) Amplitude increases

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Answer:

Correct Answer: C

Solution:

It is due to the magnetic field produced by coil.