Q19 / 111 · NTA Abhyas (NEET) 2020 · Physics · Electromagnetic Induction

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

A
equal to the acceleration due to gravity at that place
Correct answer
B
less than the acceleration due to gravity at that place
C
greater than the acceleration due to gravity at that place
D
twice the acceleration due to gravity at that place

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.

Hence, the correct answer is option: 'B'.

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