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Wattless current is possible in a circui...

Wattless current is possible in a circuit having ………..

A

only R

B

R and C

C

R and L

D

L and C

Text Solution

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The correct Answer is:
D
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
  1. Three series A.C. circuits (i) RC (ii) RL and (iii) LC (where values o...

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  2. For one series A.C. circuit, its reactance is equal to its resistance....

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  3. Wattless current is possible in a circuit having ………..

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  4. In a series LCR A.C. circuit, by keeping resistance constant, power fa...

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  5. Ratio of power factor in two A.C. circuits (i) containing only resista...

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  6. Total energy of one LC circuit is xJ. Then at t=0, energy of fully cha...

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  7. A circuit connected with a source of 230 V, draws a current of 2A and ...

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  8. An alternating current of frequency f is flowing in a circuit containi...

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  9. At alternating voltage is applied across the R-L combination V =220 si...

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  10. A chock coil has negligible resistance. The alternating p.d. across it...

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  11. Power factor in an L-C-R circuit is ……..

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  12. If 2.2 kW of power having 22000 V is transmitted on a transmission lin...

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  13. ...... Oscillates in LC circuit.

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  14. Charge in LC oscillations,

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  15. In order to continue emission of electromagnetic waves from LC oscilla...

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  16. In LC oscillator circuit, at t = 0, ……

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  17. In L-C oscillator circuit ………..

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  18. In L-C oscillator circuit inductor ……….

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  19. At t = 0, time in L-C oscillator circuit …….

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  20. In R-C circuit when charge on the plate of the capacitor is increasing...

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