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Self-induction is called the :

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Important Questions on Electromagnetic Induction and Alternating Current

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A coil of wire of 1000 turns has self inductance 120 millihenry. The self inductance of a coil 250 turn is
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The self induced emf of a coil is 25 volts. When the current in it is changed at uniform rate from 10 A to 25 A in 1 s , the change in the energy of the inductance is:
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The inductance in a coil plays the same role as
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Magnetic energy density in an inductor is given by
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Two inductors L1 and L2 are connected in parallel and a time varying current flows as shown in figure. The ratio ot current i1i2 at any ime t IsQuestion Image

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A coil of inductance L is divided into four equal parts and all the parts are connected in parallel. The effective inductance of the combination is
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The mutual inductance between two coils depends upon
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A solenoid of length 60 cm with 15 turns per cm and area of cross section 4×10-3 m2 completely surrounds another co-axial solenoid of same length and area of cross-section 2×10-3 m2 with 40 turns per cm. Mutual inductance of the system is
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The average emf induced in a coil, when the current in it changes from 2 A to 4 A in 0.05 s, is 8 V. Find the self-inductance of this coil.
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Consider two coils of radii r1 and r2, placed at a distance d away as shown in the figure. Assuming the length of the coils l1,l2d with n1,n2 the number of turns per unit length of the two coils respectively, the mutual inductance of the two coils is

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A long solenoid has 500 turns. When a current of 2 A is passed through it, the resulting magnetic flux linked with each turn of the solenoid is 4×10-3 Wb, then self-inductance of the solenoid is
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The physical quantity which is measured in the unit of Wb A-1 is
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The energy stored in an inductor of L henry when it carries a current of I ampere is
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Current in a circuit falls from 8.0 A to 0.0 A in 0.2 Seconds. If an average emf of 300 V is induced, estimate the self - inductance of the circuit?
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A coil of resistance 50 Ω is connected across a 5.0 V battery. If the current in the coil is found to be 50 mA after the time t=0.1 s battery is connected, then the inductance of the coil is
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The coupling coefficient of the perfectly coupled coil is:

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If the inductance of a coil is 1 H, its effective resistance in a DC circuit will be
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The total number of turns and cross-section area in a solenoid is fixed. However, its length L is varied by adjusting the separation between windings. The inductance of solenoid will be proportional to:
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A long solenoid has 1000 turns. When a current of 4 A flows through it the magnetic flux linked with each turn of the solenoid is 4×10-3 Wb. The self-inductance of the solenoid is: