If work done in bringing a bar magnet near the coil radius 10 cm, is 25 J, the electric energy generated in the coil assuming 60% efficiency in energy conversion is ____________.

The work done in bringing a bar magnet near a coil of radius 14 cm is 50% J. The electric energy generated in the coil if only 45% of the work is converted into electric energy is________

If the work done in bringing a charge of 10^(-18)C from infinity to point P is 2 times 10^(-17) J , what is the electric potential at P ?

If a current of 2A give rise a magnetic flux of 5xx10^(-5) weber/turn through a coil having 100 turns , then the magnetic energy stored in the medium surrounding by the coil is :-

Consider the situation of the previous problem. Find the average electric field energy stored in the capacitor and the average magnetic field energy stored in the coil.

A square 12-turn coil with sides of length 40 cm carries a current of 3 A. It lies in the x-y plane as shown in Fig. in a uniform magnetic field. (a) Find the magnetic moment of the coil. (b) Find the torque exerted on the coil. (c) Find the potential energy of the coil.

A circular coil of radius 10 cm having 100 turns carries a current of 3.2 A. The magnetic field at the center of the coil is

A circular coil of radius 1*5cm carries a current of 1*5A . If the coil has 25 turns , find the magnetic field at the centre.