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Electric Circuits

Electric Circuits
The current in the resistor R shown in figure will be

 0.2 A.
 0.8 A.
 0.4 A.
 0.6 A.

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Electric Circuits
A motor having a power factor of 0.8 absorbs in active power of 1200 W the reactive power drawn from the supply is _________ VA.

 900
 400
 130
 250

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Electric Circuits
Constant K type HPF (high pass filter) having cut off frequency 12 KHz and nominal impedance Ro = 500 Ω Find shunt arm inductor L and series arm capacitance C for T and π section of HPF ?

 None of these.
 L = 3.316 mH, C = 0.0132 μF.
 L = 3.316 mH, C = 132 μF.
 L = 0.0132 mH, C = 0.0132 μF.

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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

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

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Electric Circuits
The resistivity of semi-conductors at room temperatures is

 1000 to 1500 ohm - cm.
 109 to 1012 ohm - cm.
 1.6 × 106 to 100 × 106 ohm - cm.
 0.01 to 50 ohm - cm.

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Electric Circuits
A 10 Ohm resistor has power rating of 1W. Find the maximum current rating.

 0.1 A.
 0.01 A.
 1 A.
 0.316 A.

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MORE MCQ ON Electric Circuits

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