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In a circuit containing an inductance of...

In a circuit containing an inductance of zero resistance, the e.m.f. of the applied ac voltage leads the current by

A

`90^@`

B

`45^@`

C

`30^@`

D

`0^@`

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CHETANA PUBLICATION-AC CIRCUITS-Exercise
  1. The power factor of LCR circuit at resonance is

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

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

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

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

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

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

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

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

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  10. Power factor is maximum in an LCR circuit when

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

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

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  13. For high frequency, a capacitor offers

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

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

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

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

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  18. The phase difference between the ac and emf is pi/2 . Which of the fol...

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  19. In an A.C. circuit the current

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  20. Acoil of inductive reactance 31 Omegahas a resistance of 8 Omega. It i...

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