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Electric Circuits

Electric Circuits
In the figure, the potential difference between points P and Q is

 10 V.
 6 V.
 - 6 V.
 12 V.

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Electric Circuits
Consider the following circuit. In this circuit, when Vs = 3 V, I = 4 A, what is the value of I when Vs = 12 V?

 10 A.
 20 A.
 7 A.
 15 A.

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Electric Circuits
A balanced delta connected load has an impedance of 9∠30o Ω per phase. What is the impedance per phase of its equivalent star?

 30∠30o Ω.
 27∠30o Ω
 3∠30o Ω.
None of these

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Electric Circuits
A 3 – φ delta connected symmetrical load consumes P Watts of power from a balanced supply. If the same load is connected in star to the same supply then what is the power consumption?

 P/3.
 3P.
 P.
 √3P.

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Electric Circuits
R1 = 36 Ω and R2 = 75 Ω, each having tolerance of ±5% are connected in series. The value of resultant resistance is

 111 ± 2.77 Ω.
 111 ± 7.23 Ω.
  111 ± 5.55 Ω.
  111 ± 0 Ω.

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Electric Circuits
Which of the following theorems can be applied to any network- linear or nonlinear, active or passive, time variant or time invariant?

 Millman theorem.
 Tellegen theorem.
 Thevnin theorem.
 Norton Theorem.

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MORE MCQ ON Electric Circuits

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