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Electric Circuits

Electric Circuits
Which law(s) find application in electrolysis?

 Coulombs law.
 Gausss law.
 Ohms law.
 Faradays law.

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Electric Circuits
To obtain high efficiency, network is designed with which of the following?

 Low Q factor
 Unity Q factor
 High Q factor
 Zero Q factor

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Electric Circuits
A star connected load has three equal impedance each of (40 + j30) Ω If the line current is 5 A then value of line voltage is

 250 √3 V.
 200 V.
 250 V.
 250 / √3 V.

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Electric Circuits
Condition for a balanced 3 - phase load is that, each phase has the same value of __________________.

 resistance.
 power factor.
 all of these.
 impedance.

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Electric Circuits
What are the points to be mentioned in specifying main switches?

  None of these.
  Voltage grade.
  Both A and B.
  Current rating.

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Electric Circuits
Reactive power drawn by a pure resistor is

 0
 maximum
 minimum
None of these

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