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The power factor of LCR circuit at reson...

The power factor of LCR circuit at resonance is

A

0.707

B

1

C

zero

D

0.5

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CHETANA PUBLICATION-AC CIRCUITS-Exercise
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  2. The ratio of peak value and r.m.s. value of an alternating current is

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  3. The power factor of LCR circuit at resonance is

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  4. Power delivered by the source of the circuit becomes maximum, when

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  5. In a circuit containing an inductance of zero resistance, the e.m.f. o...

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  6. An alternating e.m.f. is applied to purely capacitive circuit. The pha...

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  7. An alternating current of frequency 'f isflowing in a circuit containi...

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  8. The average power dissipation in a pure capacitance in ac circuit is

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  9. An alternating voltage e = 200 sqrt2 sin (100 t) is connected to a 1mi...

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  10. L, C and R denote inductance, capacitance and resistance respectively....

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  11. What will be the phase difference between virtual voltage and virtual ...

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  12. Power factor is maximum in an LCR circuit when

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  13. The capacity of a pure capacitor is1Farad. In DC circuits, its effecti...

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  14. A 220 V, 50 Hz as source is connected to an inductance of 0.2 H and a ...

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  15. For high frequency, a capacitor offers

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  16. In LCR circuit the pd between the terminals of the inductance is 60 V,...

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  17. In a LCR circuit capacitance is changed from C to 2C. For the resonant...

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  18. An oscillator circuit consists of an inductance of 0.5 mH and a capaci...

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  19. Which of the following components of an LCR circuit with ac supply, di...

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