A Square Wire 2

Multiple Choice

A square wire 2.0 cm on each side is oriented so that a 5.00 mT magnetic field makes a 30.0º angle with the normal to the plane of the square.If a 1.0 mA current causes a 32.0 N · m torque on the wire,how many loops does the wire make?

A) 3.2 × 10¹⁰
B) 3.2 × 10⁶
C) 1.6 × 10¹⁰
D) 4.5 × 10¹⁰