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Electric Circuits

Electric Circuits
For the resonance circuit ω0 = 105, Q = 50, R = 400 Ω the value of C is

 125 pF.
 500 pF.
 1000 pF.
 250 pF.

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Electric Circuits
The capacitive reactance of a capacitor of (1 / 2μF) F at 103 Hz is

 10 3 μF.
 10- 3 μF.
 10- 6 μF.
 10 6 μF.

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Electric Circuits
The mass of the atom is determined by

 neutron and proton.
 electron and proton.
 electrons.
 proton.

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Electric Circuits
The terminals across the source are ___________ if a voltage source is to be neglected.

 replaced by a series resistance.
 replaced by a shunt resistance.
 open circuited.
 short circuited.

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

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

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  8.85 A.
  50 A.
  zero.
  5 A.

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MORE MCQ ON Electric Circuits

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