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Electric Circuits

Electric Circuits
From the circuit diagram shown in question 1 find the thevnin voltage.

 15 V.
 1.5 V.
 3 V.
 5 V.

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Electric Circuits
When AC flows through a pure capacitance then the current

 lags the emf by 90o.
 is in phase with emf.
 leads the emf by - 90o.
 leads the emf by 90o.

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

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

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Electric Circuits
In steady state condition capacitor acts as a

 short circuit
 open circuit
 current source
 voltage source

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

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

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Electric Circuits
Air gap flux density is of the order of

 0.75 - 0.8 T.
 0.85 - 0.9 T.
  0.65 - 0.9 T.
  0.35 - 0.5 T.

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