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Electric Circuits

Electric Circuits
Select the wave that has the least value of form factor.

 Square wave.
 Triangular wave.
 Sine wave.
 Rectangular wave.

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Electric Circuits
In above question, if circuit efficiency is 90 %. What will be output power ?

  37.3 kW.
  35.6 kW.
  30 kW.
  40 kW.

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Electric Circuits
Which of the followings is the expression for energy stored in a capacitor?

 C dv / dt.
 C / v.
 (1 / 2) Cv2.
 Cv.

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Electric Circuits
A cube of material of side 1 cm has a resistance of 0.002 Ω between its opposite faces. If the same volume of the material has a length of 4 cm and a uniform cross - section, the resistance of this length will be

 0.064 Ω.
 0.016 Ω.
  0.032 Ω.
  0.128 Ω.

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Electric Circuits
A wire 2.5 m long is bent into a square. An current of 100 A flowing through the wire will produce a magnetizing force at the center of the square, equal to

 222 AT / m.
 196 AT / m.
 72 AT / m.
 144 AT / m.

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Electric Circuits
The average value of half wave rectified sinusoidal current waveform, whose maximum value is 1A is

 0.5 A.
 1 A.
 0.318 A.
 0.637 A.

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MORE MCQ ON Electric Circuits

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