Multiple Choice
A long straight wire has a constant current through it to the right.A rectangular metal loop is situated above the wire,and also has a constant current through it,as shown in the figure.Which one of the following statements is true? 
A) The net magnetic force exerted on the rectangle is upward, and there is also a nonzero torque exerted on the rectangle.
B) The net magnetic force exerted on the rectangle is zero, and the net torque on it is zero.
C) The net magnetic force exerted on the rectangle is downward, and there is also a nonzero torque on the rectangle.
D) The net magnetic force exerted on the rectangle is zero, but there is a nonzero torque on the rectangle.
E) The net magnetic exerted force on the rectangle is downward, and the net torque on it is zero.
Correct Answer:

Verified
Correct Answer:
Verified
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