A coil has a designed for high Q performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the Q factor and the active power P consumed by the coil will be affected as follows.-A-P is doubled, Q is halvedB-P is halved, Q is doubledC-P remains constant, Q is doubledD-P decreases 4 times, Q is doubled-D-P decreases 4 times, Q is doubled

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D P decreases 4 times, Q is doubled  ω2L = 2ω1L, R remains constant ∴ Q2 = = 2Q1 i.e. Q is doubled for a high a coil ωL &gt;&gt; R ∴ i.e. P decreases 4 times.

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A coil has a designed for high Q performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the Q factor and the active power P consumed by the coil will be affected as follows.

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Exam Questions Papers - Engineering

A coil has a designed for high Q performance at a rated voltage and a specified frequency. If the frequency of operation is doubled, and the coil is operated at the same rated voltage, then the Q factor and the active power P consumed by the coil will be affected as follows.

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