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Current I is flowing through a circular...

Current `I` is flowing through a circular coil of radius r. It is placed in a magnetic field B in such a way that the plane of the circular coil is perpendicular to B. The force acting on it will be -

A

Parallel to B

B

Is perpendicular to B

C

At` 45^@` with B

D

At `60^(@)` with B

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