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Electric Circuits

Electric Circuits
What is mean by flow of electrons?

 Insulator.
 Electric current.
 Semiconductor.
 Voltage.

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Electric Circuits
Under resonance condition the phase angle between voltage phase and current phase is

 0°
 45°
 - 90°
 90°

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Electric Circuits
In which braking back emf exceeds supply voltage?

  Plugging.
  Dynamic.
  Regenerative.
  None of these.

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Electric Circuits
Three resistances of two ohms each are connected in star. In the equivalent delta representation each resistance will have a value of _______________ Ω.

 3.4.
 0.6.
 6.
 5.2.

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Electric Circuits
If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

 6 μF.
 9.67 μF.
 2.21 μF.
 3 μF.

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Electric Circuits
Which of the following are the passive elements?

 None of these.
 Both
 Resistor
 Bulb

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MORE MCQ ON Electric Circuits

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