The Figure Shows the Orientation of a Rectangular Loop Consisting

Multiple Choice

The figure shows the orientation of a rectangular loop consisting of 80 closely wrapped turns each carrying a current I. The magnetic field in the region is ( ) mT. The loop can turn about the y axis. If θ = 30°, a = 0.40 m, b = 0.30 m, and I = 8.0 A, what is the magnitude of the torque exerted on the loop? ​ ​

A) 2.5 N ⋅ m
B) 1.5 N ⋅ m
C) 3.1 N ⋅ m
D) 2.7 N ⋅ m
E) 0.34 N ⋅ m