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Electric Circuits

Electric Circuits
In the given figure the value of the source voltage is

 30 V.
 24 V.
 44 V.
 12 V.

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Electric Circuits
For Norton’s equivalent circuit

 Isc = Voc Req.
 Isc = Voc / Req.
 Voc = Isc / Req.
 Voc = Req /Isc.

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Electric Circuits
A dependent source can be

 neither a voltage nor a current source.
 both a voltage or a current source.
 a voltage source.
 a current source.

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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

  zero.
  50 A.
  5 A.
  8.85 A.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 60.
 75.
 15.
 105.

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Electric Circuits
In the circuit shown below, what is the voltage across 5 Ω resistor?

 34.4 V.
 None of them
 -28.4 V.
 -27.4 V.

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MORE MCQ ON Electric Circuits

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