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A bar magnet with poles 25.0 cm apart an...

A bar magnet with poles 25.0 cm apart and of pole strength 14.4 Am rests with its centre on a frictionless point. It is held in equilibrium at `60^(@)` to a uniform magnetic field of induction 0.25T by applying a force F at right angle to the axes, 12 cm from its pivot. The magnitude of the force is :

A

`15sqrt(3)` N

B

`7.5 sqrt(3)N`

C

`3.75 sqrt(3)N`

D

None of these.

Text Solution

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The correct Answer is:
C
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