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Electric Circuits

Electric Circuits
In the figure given, the value of R is

 10 Ω.
 12 Ω.
 24 Ω.
 18 Ω.

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Electric Circuits
In steady state condition capacitor acts as a

 current source
 open circuit
 voltage source
 short circuit

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.5.
 1.
 0.866.
 0.577.

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Electric Circuits
In above question, determine the current if E = 100 V, R = 20Ω, R1 = 10 Ω and L = 2 H at 0.5 sec after short circuit.

 - 9.59.
 9.59.
 - 6.28.
 6.98.

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Electric Circuits
An electric field can deflect

 neutrons.
 alpha particles.
 x-rays.
 gamma-rays.

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10- 6 μF.
 10 3 μF.
 10- 3 μF.
 10 6 μF.

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MORE MCQ ON Electric Circuits

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