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Electric Circuits

Electric Circuits
The thevnin equivalent of the circuit shown in the figure is

 1.5V, 5/6 Ohm
 0.75V, 5/6 Ohm
 1.5V, 1.5 Ohm
 0.75 V, 1.5 Ohm

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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

  zero.
  5 A.
  8.85 A.
  50 A.

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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.
  0.128 Ω.
  0.032 Ω.
 0.016 Ω.

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Electric Circuits
If Vout = 1 V for 1 kHz input then what would be Vout for 10 kHz for same input ?

 0.01 V.
 0.1 V .
 None of these.
  1 V.

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Electric Circuits
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

 10 µF
 5 µF
 25 µF
 1 µF

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Electric Circuits
Under resonance condition the power factor of a system is

 leading
 unity
 lagging
 any of the above

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MORE MCQ ON Electric Circuits

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