A Circular Coil (Radius = 0

A circular coil (radius = 0.40 m) has 160 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 0.16 N*m when the current in the coil is 4.0 mA.What is the magnitude of the magnetic field?

A) 0.37 T
B) 1.6 T
C) 0.50 T
D) 1.2 T