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The value of current at half power point...

The value of current at half power points is -

A

`sqrt(2)I_(m)`

B

`I_(m)//sqrt(2)`

C

`I_(m)//2`

D

`2I_(m)`

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The correct Answer is:
B
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RESONANCE-ALTERNATING CURRENT-Exercise
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  7. The power factor of LCR circuit at resonance is-

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  8. In an ac circuit the current is given by i=0.5 sin (314 t + 60^@) mill...

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  9. In an electric circuit applied ac emf is e=20 sin 300t volt and the cu...

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  10. The time required for a 50Hz alternating current to increase from zero...

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  11. A steady dc current of 2.83A is flowing in a resistance wire. The rms ...

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  12. The variation of the instantaneous current (I) and the instantaneous e...

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  13. In a series LCR circuit containing an AC voltage source of frequency o...

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  14. An alternating emf is applied across a parallel combination of a resis...

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  15. The value of current at half power points is -

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