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The momentum in mechanics is expressed as $m \times v$. The analogous expression in electricity is
A coil of inductance L is carrying a steady current i. What is the nature of its stored energy
The coefficient of self inductance of a solenoid is 0.18 mH. If a crode of soft iron of relative permeability 900 is inserted, then the coefficient of self inductance will become nearly
In a transformer, the coefficient of mutual inductance between the primary and the secondary coil is 0.2 henry. When the current changes by 5 ampere/second in the primary, the induced e.m.f. in the secondary will be
When the current in a coil changes from 8 ampere to 2 ampere in $3 \times {10^{ - 2}}$second, the e.m.f. induced in the coil is $2\;volt$. The self inductance of the coil (in millihenry) is
The mutual inductance between two coils is 1.25 henry. If the current in the primary changes at the rate of 80 ampere/second, then the induced e.m.f. in the secondary is
A coil of wire of a certain radius has 600 turns and a self inductance of 108 mH. The self inductance of a 2nd similar coil of 500 turns will be
When the number of turns in a coil is doubled without any change in the length of the coil, its self inductance becomes
The average e.m.f. induced in a coil in which the current changes from 2 ampere to 4 ampere in 0.05 second is 8 volt. What is the self inductance of the coil ?
If a current of 3.0 amperes flowing in the primary coil is reduced to zero in 0.001 second, then the induced e.m.f. in the secondary coil is 15000 volts. The mutual inductance between the two coils is

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