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A current i flows in a circular coil of ...

A current i flows in a circular coil of radius `r`. If the coil is placed in a uniform magnetic field `B` with its plane parallel to the field, magnitude of the torque that acts on the coil is

A

zero because `vecF` acts parallel to `vecv.`

B

`2pi rIB`

C

`pi r^(2) IB`

D

`2pi r^(2) IB`

Text Solution

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The correct Answer is:
C
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