Assume there is a current of 3.0 A traveling clockwise in a loop around this piece of paper (which is approximately 22 cm wide and 28 cm long).There is an infinitely long wire that runs parallel to the top edge of the paper that carries a current of 5.0 A.If the distance between the top edge and the wire is 50 cm find the magnitude of the torque on the current loop. A)zero B)2.4 10^-7 N ^. m C)2.9 10^-7 N ^. m D)3.0 10^-7 N ^. m

Question

Quizplus · Accepted Answer

The torque on a current loop in a uniform magnetic field is zero if the loop is parallel to the magnetic field lines, which is the case here since the current in the wire and the loop are in the same plane.

Assume There Is a Current of 3