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Electric Circuits

Electric Circuits
Types of rotating machines

 transformer.
 synchronous machine.
 IM.
 both B and C.

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Electric Circuits
2) Two sinusoidal emfs are given as e1 = Asin(wt+45) and e2 = Bsin(wt-30). The phase difference between the two quantities in degrees is

 75.
 105.
 60.
 15.

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

 Albumen.
 Glucose.
 Gelatine.
 Any of above.

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Electric Circuits
Electro-chemical equivalent is usually expressed in

  mg per kW.
  mg per coulomb.
  mg per volt.
  mg per kVA.

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Electric Circuits
What is the value of charge of an electron?

 1.6022 × 10-7 Coulomb
 1.6022 × 10-8 Coulomb
 1.6022 × 10-19 Coulomb
 1.6022 × 10-27 Coulomb

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Electric Circuits
The electrical conductivity of metal is typically of the order of (in ohm - m)

 10 - 4.
 105.
 10 - 6.
 107.

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MORE MCQ ON Electric Circuits

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