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Electric Circuits

Electric Circuits
What is I1 in the given circuit?

  3 A.
  1.5 A.
  0.5 A.
  1 A.

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Electric Circuits
A balanced three Phase Y-connected load has one phase voltage VB = 277∠45o V. The phase sequence is RYB. The line to line voltage VRY is

 339∠45o V.
 480∠45o V.
 339∠- 45o V.
 480∠ - 45o V.

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Electric Circuits
A capacitor

 blocks both AC and DC.
 passes AC but blocks DC.
 passes both AC and DC.
 passes DC but blocks AC.

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Electric Circuits
A cube of material of side 1 cm has a resistance of 0.002 Ω between its opposite faces. If the same volume of the material has a length of 4 cm and a uniform cross - section, the resistance of this length will be

 0.016 Ω.
  0.128 Ω.
  0.032 Ω.
 0.064 Ω.

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Electric Circuits
There are two capacitors C1 and C2 in parallel , what will be their equivalent capacitance?

 (C1 + C2) / C1C2.
 (C1C2) / C1 + C2.
 C1C2.
 C1 + C2.

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Electric Circuits
Under resonance condition the phase angle between voltage phase and current phase is

 - 90°
 90°
 0°
 45°

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MORE MCQ ON Electric Circuits

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