A coil of self-inductance 2H is carrying a current of 2A. Calculate the energy stored in the coil.

A solenoid of inductance 2 H carries a current of 1 A. What is the magnetic energy stored in a solenoid ?

A circular coil of radius 0.08m consisting of 100 turns is carrying a current of 0.4A. Calculate the magnitude of the magnetic field i) at the center of the coil and ii) at a point 0.2m from the center of the coil on its axis.

A solenoid of length 0*4 m and having 500 turns of wire carries a current of 3-0 A. A thin coil having 10 turns of wire and of radius 0-01 m carries a current of 0*4 A. Calculate the torque required to hold the coil in the middle of the ,solenoid with its axis perpendicular to the axis of the solenoid.

Find the magnitude of magnetic induction at a point 0.06m from the centre and along the axis of a circular coil carrying a current of 2 A. Also calculate the magnitude of magnetic induction at the centre of the coil. Given: Number of turns in the coil = 20 Mean radius of the coil = 0.05 m.

Define co- efficient of self - induction . Derive and expression for the energy stored in an inductor.

A circular coil of radius 10 cm and 100 turns carries a current 1 A. What is the magnetic moment of the coil ?

How much emf is induced in a coil of self-inductance 2H if the current in it.is changing at the rate of 2 As^(-1) ?