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प्रश्न
Define self inductance. Write its S.I. units.
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उत्तर
The phenomenon in which emf is induced in a single isolated coil due to change of flux through the coil by means of varying the current through the same coil is called self inductance. S.I unit of inductance is Henry.
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संबंधित प्रश्न
Explain the phenomenon of self induction
In a given coil of self-inductance of 5 mH, current changes from 4 A to 1 A in 30 ms. Calculate the emf induced in the coil.
Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an estimate of the self-inductance of the circuit.
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 LI^2`
Derive an expression for self inductance of a long solenoid of length l, cross-sectional area A having N number of turns.
Two pure inductors each of self-inductance L are connected in series, the net inductance is ______
An inductor may store energy in
The self inductance L of a solenoid of length l and area of cross-section A, with a fixed number of turns N increases as ______.
State the factors on which the magnetic coupling coefficient of two coils depends.
The current in a coil changes from 50A to 10A in 0.1 second. The self inductance of the coil is 20H. The induced e.m.f. in the coil is ______.
