A Rectangular Loop of Wire of Width 10 Cm and Length

Multiple Choice

A rectangular loop of wire of width 10 cm and length 20 cm has a current of 2.5 A flowing through it. Two sides of the loop are oriented parallel to a uniform magnetic field of strength 0.037 T, the other two sides being perpendicular to the magnetic field. The magnitude of the torque on the loop is

A) 0.0093 m∙N.
B) 0.025 m∙N.
C) 0.050 m∙N.
D) 0.0019 m∙N.
E) 0.038 m∙N.