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Electric Circuits

Electric Circuits
Capacitor does not allow the sudden change of

 power
 voltage
 current
None of these

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Electric Circuits
Three identical resistor are connected in star across a 3 phase 550 V supply dissipating a total power of 300 W the line current is ____________ A.

 2.56
 0.5
 1
 3.149

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Electric Circuits
A network contains linear resistors and ideal voltage sources. If values of all the resistors are doubled, then voltage across each resistor is

 halved.
 remain same.
 increase by two times.
 doubled.

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Electric Circuits
If a resistor and an inductor are connected in series across a voltage source. Which two parameters in that circuit increase if frequency of voltage source increases?

 VL and I.
 Z and I.
 VL and Z.
 VL and VR.

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Electric Circuits
In a capacitive circuit, the capacitive reactance is

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

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Electric Circuits
Link in network theory refers to

  B - N - 1.
  N - B - 1.
  N - 1.
  B - N + 1.

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MORE MCQ ON Electric Circuits

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