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Electric Circuits

Electric Circuits
Millman theorem yields equivalent

 current source.
 both ‘c’ and ‘d’ .
 impedance.
 voltage source.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 4R.
 0.5R.
 R.
 2R.

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Electric Circuits
The maximum value of a current wave is 2A. If the form factor of a current wave is 1.5 and the peak factor is 2.7, find the rms value in Amperes.

 0.741 A.
 1.414 A.
 1.57 A.
 0.494 A.

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Electric Circuits
Four resistances 80 Ohm, 50 Ohm, 25 Ohm and R are connected in parallel. Current through 25 Ohm resistance is 4A. Total current of supply is 10A. The value of R will be

 40.25.
 66.66.
 76.66.
 36.36.

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Electric Circuits
The value of E within the field due to a point charge can be found with help of

 Lenzs law.
 Faradays law.
 Kirchhoffs law.
 Coulombs law.

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

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

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MORE MCQ ON Electric Circuits

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