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Q.

A circular loop of radius R carrying a current I is placed in a uniform magnetic field B with its plane perpendicular to B. The torque on the loop is

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a

$π R^{2} I A B$

b

$π I R^{2} B$

c

$π R^{2} I B$

d

Zero

answer is D.

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Detailed Solution

$τ = BINA sin 0 ° τ = 0$

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