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Electric Circuits

Electric Circuits
For the circuit shown in the given figure the current I is given by

 3 A.
 2 A.
 4 A.
 1 A.

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Electric Circuits
The delta equation of given star connected impedance ZQR is equal to

  (10 + j30) Ω.
 (5 + j10 / 3) Ω.
 40 Ω.
 (20 + j10) Ω.

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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
In the figure given, the value of R is

 24 Ω.
 18 Ω.
 12 Ω.
 10 Ω.

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Electric Circuits
Which of the following can not be connected in series unless they are identical?

 Resistance.
 Voltage source.
 Current source.
 Both of above.

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Electric Circuits
Efficiency of electrical machines should be calculated by measuring

 output and input.
 losses and input.
 losses and output.
 losses.

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MORE MCQ ON Electric Circuits

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