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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 needed to maintain the needle in this position will be

A

`sqrt(3)m`

B

W

C

0

D

`(sqrt(3)//2)` W

Text Solution

Verified by Experts

The correct Answer is:
A
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