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If the rms current in a 50 Hz AC rircuit...

If the rms current in a 50 Hz AC rircuit is 5A the value of the current `1/300` seconds after its value becomes zero is

A

`5(sqrt2)A`

B

`(5(sqrt3))/2`

C

`5/6A`

D

5/(sqrt2)A

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CHETANA PUBLICATION-AC CIRCUITS-Exercise
  1. A 50 volt a.c. is applied across an RC (series) network. The rms volta...

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  2. Apure inductor of 25 mHis conneded to a source of 220 V. Given the fre...

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

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

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  5. Thedisplacement currentisgivenby the expression

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

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

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  8. Relation between erms and eois

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  9. A6Omega resistanceand 8Omega inductance are connected in series then p...

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  10. A current that does not perform any work is

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  11. In LCR series drcuit apparent power is

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  12. Seled true statement for purely inductive circuit

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  13. Resonance frequency for parallel LC circuit is given by

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

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  15. In series LCR circuit, at resonance impedance

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

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  17. The impedance of LCR circuit increases with frequency when

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  18. Which of the following depends upon frequency?

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  19. In an R.C. circuit resistance = 4 Omega and XC = 3 Omega, then power f...

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  20. In a circuit L,Cand R are connected in series with an alternating volt...

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