EXAMIANS
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
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The self inductances of two coils are 8 mH and 18 mH. If the coefficient of coupling is 0.5, the mutual inductance of the coils is
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A moving magnetic field will produce the same effect as a conductor that is moving.
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A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be
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A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by
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For a purely inductive circuit which of the following is true?
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Which of the following circuit element stores energy in the electromagnetic field?
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The direction of induced e.m.f. can be found by
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In an iron cored coil the iron core is removed so that the coil becomes an air cored coil. The inductance of the coil will
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Lenz's law is a consequence of the law of conservation of
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