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A bar magnet of length L is dropped insi...

A bar magnet of length L is dropped inside a vertical copper pipe of length `l(l lt L)`, it will experience an acceleration q such that

A

`q gt g`

B

`q=g`

C

`q lt g`

D

`q=lg//L`

Text Solution

Verified by Experts

The correct Answer is:
C
Current induced in pipe opposes the approach of magnet so `q lt g`.
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