A square current-carrying loop is placed in a uniform magnetic field B with the

Question

A square current-carrying loop is placed in a uniform magnetic field B with the plane of the loop parallel to the magnetic field. (See drawing). The dashed line is the axis of rotation. The magnetic field exerts:

a) a net torque, but not a net force, on the loop

b) a net force and a net torque on the loop

c) a net force, but not a net torque, on the loop

d) neither a net force nor a net torque on the loop

A square current-carrying loop is placed in a uniform magnetic field B with the plane of the loop parallel to the magnetic field. (See drawing). The dashed line is the axis of rotation. The magnetic field exerts: a net torque, but not a net force, on the loop a net force and a net torque on the loop a net force, but not a net torque, on the loop neither a net force nor a net torque on the loop

Explanation / Answer

the magnetic field exerts a net torque and a net force on the loop.

the force is

F = B x I x L x sin(theta)

where B is magnetic field,I is current,L is length of loop and theta is the angle made with the magnetic field

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