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The phase difference between V and I of ...

The phase difference between V and I of an LCR circuit in series resonance is

A

`pi`

B

`pi/2`

C

`pi/4`

D

0

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The correct Answer is:
D
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CHHAYA PUBLICATION-ALTERNATING CURRENT -EXERCISE (Multiple Choice Question)
  1. In an LR circuit , the phase angle between alternating voltage and alt...

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  2. In an LCR series circuit, the capacitance is reduced to one-fourth, wh...

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  3. The phase difference between V and I of an LCR circuit in series reson...

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  4. The reactance of an inductor of inductance 1/piH at frequency 50 Hz is

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  5. Which quantity in an ac circuit is not dependent on frequency?

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  6. The condition of getting maximum current in an LCR series circuit is

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  7. The series resonant frequency of an LCR circuit is f. IF the capacitan...

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  8. A coil has resistance 30 Omega and inductive reactance 20 Omega at 50 ...

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  9. A fully charged capacitor C with initial charge q0 is connected to a ...

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  10. A voltage V0sinomegat is applied across a series combination of resist...

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  11. When an ideal choke is connected to an ac source of 100V and 50Hz, a c...

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  12. In an LCR circuit voltages across R,L and C are 10V,10V and 20V respec...

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  13. In an ac circuit alternating voltage E=200sqrt2 sin 100t volt is conne...

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  14. The power factor of an LR circuit carrying an ac of angular frequency ...

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  15. One of the condions to get a wattless current in an ac circuit is

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  16. If an emf=E=E0cosomegat is applied to a circuit, the current becomes I...

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  17. In an ac circuit , V and I are given by V=100sin(100t)V,and I=100sin (...

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  18. The inductance and capacitance in a closed circuit are 20 mH and 2muF ...

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  19. For an LC oscillator which one of the followings is not true?

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  20. An ideal transformer is used to decrease an alternating voltage from 8...

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