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Electric Circuits

Electric Circuits
What is Va in the below circuit?

 (4R + 10) / 3.
 (3R + 10) / 3.
 (6R - 10) / 3.
 (6R + 10) / 3.

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Electric Circuits
Which of the following substance when added to electrolyte promotes smooth deposition?

 Albumen.
 Any of above.
 Gelatine.
 Glucose.

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Electric Circuits
The current in a chemical cell is a movement of

  positive and negative ions.
  negative ions only.
 positive hole charges.
  positive ions only.

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Electric Circuits
In series RLC circuit what is the power factor just bellow the resonance frequency?

 Leading
 Lagging
 Unity
 Zero

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 130
 250
 900
 400

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Electric Circuits
In a 3 - φ delta connection, two-wattmeter method is used to measure the power; if the two watt meters read 28.13 kW and 13.31 kW, the power factor of connection will be

 0.4.
 0.6.
 0.85.
 0.9.

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