A conducting circular loop of radius r carries a constant current i- It is placed in a uniform magnetic field B-o- such that B-o- is perpendicular to the plane of the loop-The magnetic force acting on the loop is

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Standard X

Physics

Magnetic Field Due to a Straight Current Carrying Conductor

A conducting ...

Question

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

i r_{o}

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2 π i r

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Zero

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π r_{o}

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Solution

The correct option is C Zero
Answer is C.
The net magnetic force acting is zero but loop expands when the current flows in the clockwise direction. The net magnetic force acting is zero but loop contracts when the current flows in the anticlockwise direction.
Please refer the diagram.

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[BIT 1992; MP PET 1994; IIT 1983;MP PMT 1999; AMU (Engg.) 2000]

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A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field →Bo such that →Bo is perpendicular to the plane of the loop.The magnetic force acting on the loop is

The correct option is C ZeroAnswer is C.The net magnetic force acting is zero but loop expands when the current flows in the clockwise direction. The net magnetic force acting is zero but loop contracts when the current flows in the anticlockwise direction.Please refer the diagram.

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

The correct option is C Zero
Answer is C.
The net magnetic force acting is zero but loop expands when the current flows in the clockwise direction. The net magnetic force acting is zero but loop contracts when the current flows in the anticlockwise direction.
Please refer the diagram.