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Electric Circuits

Electric Circuits
Basic cut set matrix consists of

 one branch.
 no branches.
 2 branch.
 any number of branches.

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  50 A.
  zero.
  8.85 A.
  5 A.

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Electric Circuits
By which of the following elements transients will not occur?

All of these
 R
 C
 L

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Electric Circuits
What would be the power given by source V2?

 0 W.
 10 W.
 - 5 W.
 5 W.

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Electric Circuits
When AC flows through a pure capacitance then the current

 leads the emf by 90o.
 lags the emf by 90o.
 is in phase with emf.
 leads the emf by - 90o.

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Electric Circuits
Internal resistance of ideal voltage source is

 zero
 100 ohms
 infinite
 finite

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MORE MCQ ON Electric Circuits

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