A 100-Turn Loop of Wire Whose Area Is 0

Multiple Choice

A 100-turn loop of wire whose area is 0.15 m² carries 3.0 A of current. If a uniform magnetic field of 2.0 T makes an angle of 60° with the plane of the loop, the maximum torque on the loop is

A) zero.
B) 5.0 N·m.
C) 15 N·m.
D) 45 N·m.