A square coil and a triangular coil each have sides of length L.The triangular coil has twice as many turns as the square coil.If a the same current is sent through each coil,when the coils are placed in the same uniform magnetic field making an angle of 30^° with the planes of the coils,which coil experiences the greater torque? A)the square coil B)the triangular coil C)Both coils experience the same torque. D)It depends on the magnitude of the magnetic field that the coils are placed in.

Question

Quizplus · Accepted Answer

The torque experienced by a coil in a magnetic field is proportional to the number of turns, the area of the coil, and the sine of the angle between the magnetic field and the normal to the plane of the coil. The square coil has a larger area than the triangular coil, and since the triangular coil has twice as many turns, the square coil experiences the greater torque.

A Square Coil and a Triangular Coil Each Have Sides