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Electric Circuits

Electric Circuits
For symmetrical wave form average value of one full cycle is

 1
 2.22
 0
 1.11

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Electric Circuits
An electrical motor has rating of 10 MVA at 0.8 lag, represented as series RL circuit at a 50 MVA base. Find the impedance value?

 (2 + j4) pu
 (4 + j2 ) pu
 (3 + j4) pu
 (4 + j3) pu

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Electric Circuits
Form factor is equal to Peak factor in case of

 saw tooth wave.
All of these
 triangle wave.
 square wave.

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

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

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Electric Circuits
A ceramic and a mica capacitor have the same physical dimension. Which has the higher value of capacitance?

 Ceramic capacitor.
 Mica capacitor.
  It is impossible to conclude on the basis of information supplied.
 Both have identical value of capacitor.

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Electric Circuits
When power factor angle is constant, then shape of the current locus is

 semi circle.
 straight line.
 triangle.
 circle.

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MORE MCQ ON Electric Circuits

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