EXAMIANS
For a purely inductive circuit which of the following is true?
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A 500 turns solenoid develops an average induced voltage of 60 V. Over what time interval must a flux change of 0.06 Wb occur to produce such a voltage?
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In case all the flux from the current in coil 1 links with coil 2, the coefficient of coupling will be
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An average voltage of 10 V is induced in a 250 turns solenoid as a result of a change in flux which occurs in 0.5 second. The total flux change is
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The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will
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A coil induces 350 mV when the current changes at the rate of 1 A/s. The value of inductance is
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If current in a conductor increases then according to Lenz's law self-induced voltage will
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The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as
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Which of the following is unit of inductance?
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The direction of induced e.m.f. can be found by
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