A square loop of wire carrying current I is lying in the plane of paper as shown in Fig. 1.141. The magnetic field is present in the region as shown. The loop will tend to rotate

Options

A. about `PQ` with `KL` coming out of the page
B. about `PQ` with `KL` going into the page
C. about `RS` with `MK` coming out of the page
D. about `RS` with `MK` going into the page

Answer

A

Explanation

See the direction of torque about centre.