MagnetismHard
Question
A conducting circular loop of radius r carries a constant current i. It is placed in a uniform magnetic field 
such that is perpendicular to the plane of the loop. The magnetic force acting on the loop is
such that is perpendicular to the plane of the loop. The magnetic force acting on the loop is Options
A.ir
B.2πir
C.zero
D.πir
Solution
Magnetic force on a current carrying loop in uniform magnetic field is zero.
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