A circular coil (radius = 0.25 m)has 143 turns and is in a uniform magnetic field.If the orientation of the coil is varied through all possible positions,the maximum torque on the coil by magnetic forces is 0.29 N⋅m when the current in the coil is 2.7 mA.What is the magnitude of the magnetic field?
A)5.47 T
B)0.304 T
C)3.83 T
D)137 T

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The Answer of A circular coil (radius = 0.25 m)has 143 turns and is in a uniform magnetic field.If the orientation of the coil is varied through all possible positions,the maximum torque on the coil by magnetic forces is 0.29 N⋅m when the current in the coil is 2.7 mA.What is the magnitude of the magnetic field?
A)5.47 T
B)0.304 T
C)3.83 T
D)137 T

A Circular Coil (Radius = 0