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The average power dissipated in a pure i...

The average power dissipated in a pure inductor `L carrying an alternating current of rms value I is .

A

`(1)/(2) LI^(2)`

B

`LI^(2)`

C

`(1)/(4) LI^(2)`

D

zero

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Verified by Experts

The correct Answer is:
D
Average power dissipated in purely inductive capacitive circuit is zero `(phi = 90^(@))`
The power is dissipated only in resistance .
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CP SINGH-ALTERNATING CURRENT-EXERCISES
  1. An ac source is connected across a resistance of 10 Omega The power di...

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  2. In an AC circuit, the power factor

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  3. The average power dissipated in a pure inductor L carrying an alternat...

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  4. An AC source rated 100 V (rms) supplies a current of 10 A(rms) to a ci...

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  5. In an LCR circuit the energy is dissipated in

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  6. Power delivered by an ac source of angular frequency Omega(0) to an LC...

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  7. Two coils A and B are connected in series across a 240V ,50 Hz supply ...

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  8. In previous question the resistance of coil B is

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  9. In previous question the resistance of coil A is .

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  10. A choke coil has.

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  11. A choke coil is preferred to a resistance for reducing current in an a...

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  12. An electric lamp which runs at 80 volt d.c. and consumes 10 ampere is ...

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  13. In the circuit shown, R is a pure resistor, L is an inductor of neglig...

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  14. A capacitor and an inductor are connected in parallel across an ac sou...

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  15. In the given circuit the current drawn from the source is .

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  16. An inductor of 10mH an a capacitor of 16mF are connected in the circui...

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  17. The AC voltage across a resistance can be measured using

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  18. Alternating current can be measured by

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  19. Hot wire ammeters can be used for measuring

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  20. In the given circuit, the AC source has (omega) = 100 rad//s. Consider...

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