A flat circular coil of wire having 200 turns and diameter 6.0 cm carries a current of 7.0 A. It is placed in a magnetic field of with the plane of the coil making an angle of 30° with the magnetic field. What is the magnitude of the magnetic torque on the coil?
A) 2.1 N ? m
B) 1.2 N ? m
C) 3.9 N ? m
D) 5.4 N ? m
E) 1.0 N ? m
Correct Answer:
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