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Related Questions

• An inductor, L a resistance R and two identical bulbs, ${B_1}$ and ${B_2}$ are connected to a battery through a switch S as shown in the figure. The resistance R is the same as that of the coil that makes L. Which of the following statements gives the correct description of the happenings when the switch S is closed

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• A solenoid is 1.5 m long and its inner diameter is 4.0 cm. It has three layers of windings of 1000 turns each and carries a current of 2.0 amperes. The magnetic flux for a cross-section of the solenoid is nearly

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• The self inductance of a solenoid of length L, area of cross-section A and having N turns is

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• In a transformer, number of turns in the primary are 140 and that in the secondary are 280. If current in primary is 4A then that in the secondary is

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• A coil of $N$ turns and mean cross-sectional area $A$ is rotating with uniform angular velocity $\omega$ about an axis at right angle to uniform magnetic field $B$. The induced e.m.f. $E$ in the coil will be

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