The Maximum Torque on a Flat Current-Carrying Loop Occurs When $45 ^ { \circ }$

Multiple Choice

The maximum torque on a flat current-carrying loop occurs when the angle between the plane of the loop's area and the magnetic field vector is

A) $45 ^ { \circ }$
B) $135 ^ { \circ }$
C) $0 ^ { \circ }$
D) $90 ^ { \circ }$