A square loop of side `a` is placed in the same plane as a long straight wire carrying a current `i`. The centre of the loop is at a distance `r` from wire where `r gt gt a`. The loop is moved away from the wire with a constant velocity `v`. The induced `e.m.f` in the loop is

A square loop of side a is placed in the same plane as a long straight wire carrying a current i. The centre of the loop is at a distance r from the wire where r > > a. The loop is moved away from the wire with a constant velocity v. The induced e.m.f. in the loop is

A square (each side of length L) wire loop is kept with a long straight wire carrying current I. The emf induced in the square loop is _____

A square loop of side a is placed at a distance a length away from a long wire carrying a current I_1 . If the loop carries a current I_2 as shown in the figure . Then the nature of the nature of the force and its amount is

A square loop of side a is placed at a distance a length away from a long wire carrying a current I_1 . If the loop carries a current I_2 as shown in the figure . Then the nature of the nature of the force and its amount is

A circular loop of radius r carries a current i .How should a long, straight wire carrying a current 3i be placed in the plane of the circle so that the magnetic field at the centre of the loop becomes zero?

A straight wire carrying current I is made into a circular loop . If M is the magnetic moment associated with the loop , then length of the wire is

A rectangular loop of wire with dimensions shown in figure is coplanar with a long wire carrying current 'I' . The distance between the wire and the left side of the loop is r . The loop is pulled to the right as indicated. What are the directions of the induced current in the loop and the magnetic forces on the left and right sides of the loop when the loop is pulled ?

A square meallic loop of side l is placed near a fixed long wire carrying a current i (figure). The loop is moved towards right perpendicular to the wire with a speed v in the plane containing the wire and the loop. The emf induced in the loop when the rear end of the loop is at a distance a=2l from the wire is (mu_(0)iv)/(xpi) . Find out value of x .