Energy needed to establish an alternating current I in a coil of self inductance L is

Energy required to establish a current of 4 A in a coil of self-inductance L=200 mH is

Define self-inductance of a coil. Show that magnetic energy required to build up the current I in a coil of self-inductance L is given by 1/2 L I^2

The unit of self inductance of a coil is

The coefficient of self inductance of a coil is

The self inductance of a coil is

The emf E of a source varies with time. It sends a current I through a coil of self-inductance L connected to it. What is the instantaneous effective emf of the circuit?

Define the term self-inductance of a solenoid. Obtain the expression for the magnetidc energy stored in an inductor of self-inductance L to build up a current I through it.