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A chock coil has negligible resistance. ...

A chock coil has negligible resistance. The alternating p.d. across it, is 220V and the current is 5 mA. The power consumed is …….

A

`220xx5/1000` W

B

`220/5` W

C

0

D

220 x 5W

Text Solution

Verified by Experts

The correct Answer is:
C
The phase difference between voltage and current in an A.C. circuit containing only inductor is
`delta=pi/2`,
`P=(V_mI_m)/2 "cos" pi/2=0 " " [because "cos" pi/2=0]`
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KUMAR PRAKASHAN-ALTERNATING CURRENTS -SECTION-D MCQs (DARPAN BASED ON TEXTBOOK)
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  2. At alternating voltage is applied across the R-L combination V =220 si...

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

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

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

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  6. ...... Oscillates in LC circuit.

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  7. Charge in LC oscillations,

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

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

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  10. In L-C oscillator circuit ………..

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

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

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

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  14. In an L-C oscillator circuit having a completely charged capacitor, wi...

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  15. Time taken from zero to maximum for an A.C. voltage of frequency 50Hz ...

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  16. Initially conditions of L-C oscillator circuit ……….

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

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  18. In oscillator circuit, presence of .........are necessary

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  20. Which of following quantities remains constant in transformer ?

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