A conducting circular loop of radius r carries a constant current i. it is placed in a uniform magnetic field $B_{0}$ such that $B_{0}$ I perpendicular to the plane of the loop. The magnetic force acting on the loop is

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B_{0}

π

B_{0}

Zero

π

B_{0}

answer is C.

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Detailed Solution

A conducting circular loop of radius

r

carries a constant current

i

. it is placed in a uniform magnetic field

B_{0}

such that

B_{0}

I perpendicular to the plane of the loop. The magnetic force acting on the loop is Zero
In a circular loop, the magnetic force will be zero. In a circular loop, if the current flows in a clockwise direction the circular loop will expand. In the circular loop, if the current flows in an anti-clockwise direction, then the circular loop will contract. The magnetic force will be clockwise or anticlockwise direction will be zero.

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