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Electric Circuits

Electric Circuits
In RLC parallel network R = 2 Ohm, L = 2mH and C = 1μF. Find the value of time constant?

 2 msec
 4 msec
 4 μsec
 2 μsec

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Electric Circuits
In the circuit given, I = 1 A for Is = 0. What is the value of I for Is = 2 A ?

 3 A.
 4 A.
  2 A.
 1 A.

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Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 1.
 16.
 4.
 1/4.

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Electric Circuits
Kirchhoff's second law is based on law of conservation of

 mass.
 charge.
 momentum.
 energy.

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 3 Ω.
 1 Ω.
 2 Ω.
 4 Ω.

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Electric Circuits
When power factor angle is constant, then shape of the current locus is

 triangle.
 circle.
 straight line.
 semi circle.

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