A coil with air inside it has a self inductance of 0.05 H. A soft iron rod of relative permeabiilty 100 is introduced inside the coil. The value of self inductance is

A coil with air inside it has self inductance of 0.05H .A soft iron rod of relative permeability 100 is introduced inside the coil .The value of self inductance is

An air-cored coil has a self-inductance of 0.1 H. A soft iron core of relative permeability 1000 is 1/10th. The value of self-inductance now becomes

The self inductance of a coil is

Define the term self inductance of a coil.

The unit of self inductance of a coil is

The coefficient of self-inductance of a solenoid is 0.18 mH . If a crude of soft iron of relative permeability 900 is inserted, then the coefficient of self-inductance will become nearly