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Question

A circular loop of area 1 cm2, carrying a current of 10 A, is placed in a magnetic field of 0.1 T perpendicular to the plane of the loop. The torque on the loop due to the magnetic field is

A
Zero
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B
104Nm
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C
102Nm
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D
1Nm
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Solution

The correct option is A Zero
τ=NBiA sinθ; given θ=0 so τ=0.

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