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A 50 volt a.c. is applied across an RC (...

A 50 volt a.c. is applied across an RC (series) network. The rms voltage across the resistance is 40 volt, then the potential across the capadtance would be

A

10 V

B

20 V

C

30 V

D

40 V

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CHETANA PUBLICATION-AC CIRCUITS-Exercise
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  4. Apure inductor of 25 mHis conneded to a source of 220 V. Given the fre...

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  5. If the rms current in a 50 Hz AC rircuit is 5A the value of the curren...

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  6. A resistor of 500 Omega and an indudance of 0.5 H are in series with a...

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  7. Thedisplacement currentisgivenby the expression

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  8. An alternating e.m.f. is given by e = 100 sin 314 t, the time within w...

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  9. A sinusoidal voltage e = 200 sin (100 t) is applied acrossaresistanceo...

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  10. Relation between erms and eois

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  12. A current that does not perform any work is

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  16. In LCR series drcuit, at resonance the applied e.m.f. and current

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  17. In series LCR circuit, at resonance impedance

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  18. In series LCR circuit R = 4Omega, L = 0.2 H and C = 0.1 F, at resonanc...

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  19. The impedance of LCR circuit increases with frequency when

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  20. Which of the following depends upon frequency?

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