A Circular Coil of Wire of 200 Turns and Diameter

Multiple Choice

A circular coil of wire of 200 turns and diameter 6 cm carries a current of 7 A.It is placed in a magnetic field of 0.90 T with the plane of the coil making an angle of 30° with the magnetic field.What is the torque on the coil?

A) 3.1 N ∙ m
B) 1.8 N ∙ m
C) 5.9 N ∙ m
D) 8.2 N ∙ m
E) 1.5 N ∙ m