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Electric Circuits

Electric Circuits
Energy efficiency during electroplating is usually in the range

 85 to 90%.
 50 to 80%.
 80 to 85%.
 90 to 99%.

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Electric Circuits
In the circuit shown below if I = 2 A then find V?

 5 V.
 3 V.
 2 V.
 1 V.

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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 current in R is

 5.08 A.
 1.27 A.
 2.54 A.
 10.16 A.

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

 Zero
 Leading
 Lagging
 Unity

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Electric Circuits
Which of the following has positive temperature coefficient ?

  Gold.
  Rubber.
  Germanium.
  Paper.

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Electric Circuits
In a capacitive circuit, the capacitive reactance is

 indirectly proportional to the square of frequency
 indirectly proportional to frequency
 directly proportional to frequency
 directly proportional to the square of frequency

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MORE MCQ ON Electric Circuits

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