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

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

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

What is meant by 'self-inductance of coil is 1 H '?

A coil has self inductance of 0.01H .The current through it is allowed to change at the rate of 1A in 10^-2s .The induced emf is