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Electric Circuits

Electric Circuits
In the above question find the angle between voltage and current?

 90.
 30.
 54.74.
 60.

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Electric Circuits
In RC series circuit R = 2Ω, C = 2μF and 10V dc is applied. Then what is the value of current?

 0A
 5A
 2A
 10A

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Electric Circuits
The common voltage across parallel branches with different voltage sources can be determined by the relation V = (V1 / R1 + V2 / R2 + V3 / R3) / (1 / R1 + 1 / R2 +1 / R3 .....) The statement is associated with which theorem?

 Millman’s theorem.
 Thevenin’s theorem.
 Superposition theorem.
 Norton’s theorem.

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Electric Circuits
Condition of reciprocity in Y-parameter representation is

 Y11 = Y22.
 Y12 = Y21.
 Y11 = Y12.
 Y12 = Y22.

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Electric Circuits
The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be

 0.25.
  2.
  0.5.
 4.

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Electric Circuits
The greater the internal resistance of a cell

 the greater the emf.
 the lesser the terminal voltage.
 the greater the terminal voltage.
 the lesser the emf.

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