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Question

# A circular coil placed in a uniform magnetic field. If alternating current flows through this coil thenNet force will act on coilCoil will be stationaryCoil will be rotatedNone of the above

A
Coil will be stationary
B
None of the above
C
Net force will act on coil
D
Coil will be rotated
Solution
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#### Given: Current carrying circular coil in a uniform magnetic fieldSolution : When a current carrying circular coil is placed in a uniform magnetic field then torque acting on the coil will not be zero which leads to rotation of coil.Hence the correct option is C

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