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A resistor of 500 Omega and an indudance...

A resistor of `500 Omega` and an indudance of 0.5 H are in series with an AC source which is given by V = `100sqrt2` sin (1000 t). The power fador of the combination is

A

`1/sqrt2`

B

`1/sqtr3`

C

0.5

D

0.6

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CHETANA PUBLICATION-AC CIRCUITS-Exercise
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  3. A resistor of 500 Omega and an indudance of 0.5 H are in series with a...

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  4. Thedisplacement currentisgivenby the expression

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

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

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

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  14. In series LCR circuit, at resonance impedance

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

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  16. The impedance of LCR circuit increases with frequency when

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  17. Which of the following depends upon frequency?

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

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

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  20. In an AC circuit, e and i are given by e = 150 sin 150 t V and i = 150...

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