A square loop of a conducting material of side and resistance r is dragged through a uniform magnetic field B with uniform velocity `nu` keeping the plane of the loop perpendicular to the direction ofthe field. What isthe current flowing through the loop?

Deduce the expression for torque on a rectangular current loop in a uniform magnetic field.

A metal rod of length l is placed normal to a uniform magnetic field B. The rod moves with velocity v perpendicular to the field. Show that motional emf across its ends is Blv.

A square loop of side 3cm is placed 25 cm away from a Convex mirror of focal length 10cm. The aixs of the mirror passes through the intersecting point of the diagonals of the loop and is perpendicular to the plane of the loop. What is the area enclosed by the image of the loop?