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1.
Which of the following circuit element stores energy in the electromagnetic field?
2.
Which of the following inductor will have the least eddy current losses?
3.
Find the force acting on a conductor 3m long carrying a current of 50 amperes at right angles to a magnetic field having a flux density of 0.67 tesla
4.
Both the number of turns and the core length of an inductive coil are doubled. Its self-inductance will be
5.
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6.
A conductor 2 meters long moves at right angles to a magnetic field of flux density 1 tesla with a velocity of 12.5 m/s. The induced e.m.f. in the conductor will be
7.
If current in a conductor increases then according to Lenz's law self-induced voltage will
8.
Two coils have inductances of 8 mH and 18 mH and a coefficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be
9.
Two coils have self-inductances of 10 H and 2 H, the mutual inductance being zero. If the two coils are connected in series, the total inductance will be
10.
A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by