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The R.M.S. value of sinusoidal current and voltage related to the peak current I0 and peak voltage E0 respectively as

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Important Questions on Alternating Current

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The quality factor of a series LCR circuit is given as
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A capacitor of 2μF is connected to an alternating voltage source, E=1002sin(50t)V. The reading of the ammeter would be
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The r.m.s. value of the voltage E=2002sin(310t-ϕ) is
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An inductor of reactance XL=4 Ω and resistor of resistance R=3 Ω are connected in series with a voltage source of emf ε=(20 V)[sin(100π rad s-1)t]. The current in the circuit at any time t will be
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The mean value of the current I=I0sinωt over two complete cycle is _____.
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At resonance, the impedence of series LCR circuit is _____.
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The ratio of ω0LR is called _____ factor of the circuit.
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The power factor of purely _____ circuit is 1.