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Electric Circuits

Electric Circuits
A 10Ω resistor is stretched to increase its length double. Its resistance will now be

 40 Ω.
 20 Ω.
 5 Ω.
 10 Ω.

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Electric Circuits
Instantaneous power in inductor is proportional to the

 square of the rate of change of current.
 temperature of the inductor.
 product of the instantaneous current and rate of change of current.
 square of instantaneous current.

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Electric Circuits
Air gap flux density is of the order of

  0.65 - 0.9 T.
 0.75 - 0.8 T.
  0.35 - 0.5 T.
 0.85 - 0.9 T.

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Electric Circuits
If N is the number of nodes and b is the number of branches in a network, then rank of tie set matrix is

 N.
 b - N - 1.
 N - 1.
 b - N + 1.

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Electric Circuits
In the circuit shown in figure if I1 = 1.5 A, then I2 will be

 1 A.
 2 A.
 1.5 A.
 0.5 A.

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Electric Circuits
Under resonance condition the phase angle between voltage phase and current phase is

 45°
 0°
 - 90°
 90°

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MORE MCQ ON Electric Circuits

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