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A magnetic needle lying parallel to a ma...

A magnetic needle lying parallel to a magnetic field requires W units of work to turn it through `60^@` The torque required to keep the needle in this position will be

A

a) `2W`

B

b) W

C

c) `W/sqrt2`

D

d) `sqrt3W`

Text Solution

Verified by Experts

The correct Answer is:
D
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