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Electric Circuits

Electric Circuits
Average power taken by the pure capacitor is

 Zero
 Maximum
 Minimum
 Any of the above

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across L is

 50.5 V.
  39.1 V.
  31.9 V.
 45.5 V.

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Electric Circuits
You have to replace 1500 Ω resistor in radio. You have no 1500 Ω resistor but have several 1000 Ω ones which you would connect

 three in series.
 three in parallel.
 two in parallel and one in series.
 two in parallel.

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Electric Circuits
What will be the rms value of rectangular wave with amplitude 10 V?

 10 V.
 5√2 V.
 7.7 V.
 11.2 V.

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Electric Circuits
VRN, VYN and VBN are three phase voltage of a balanced three phase system. If VRN = 200∠30o V and VBN = 200∠- 90o V, then phase sequence of the system is

 BRY.
 YRB.
 RYB.
 RBY.

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Electric Circuits
In active filter which element is absent?

 Capacitor.
 Resistor.
 Inductor.
 Both of above.

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MORE MCQ ON Electric Circuits

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