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When a current carrying coil is placed i...

When a current carrying coil is placed in a uniform magnetic field of induction `B`, then a torque `tau` acts on it. If `I` is the current, `n` is the number of turns and `A` is the face area of the coil and the normal to the coil makes an angle `theta` with `B`, Then

A

`tau = BInA`

B

`tau = BInA sin theta`

C

`tau = BInA cos theta `

D

`tau = BInA tan theta `

Text Solution

Verified by Experts

The correct Answer is:
B
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