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Electric Circuits

Electric Circuits
Current efficiency in electroplating is usually

  99 %.
  50 to 60 %.
  90 to 98 %.
  70 to 80 %.

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Electric Circuits
Which of following is not a vector?

 Electric field.
 Linear momentum.
 Electric potential.
 Angular momentum.

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Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Leading
 Lagging
 Zero
 Unity

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Electric Circuits
In foster 1 form 1st element is

 both.
 capacitor.
 inductor.
 none.

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Electric Circuits
Four bulbs of 40 W each are connected in series with a battery across them, which of the following statement is true?

None of these
 The voltage across each bulb is not same.
 The power dissipation in each bulb is not same.
 The current through each bulb is same.

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Electric Circuits
A capacitor passes a current of 12.6 mA when supplied with 20 V ac with a frequency of 1000 Hz. The capacitance will be

 1 μF.
 0.1 μF.
 0.01 μF.
 0.001 μF.

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