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Electric Circuits

Electric Circuits
Which of the following are the passive elements?

 None of these.
 Resistor
 Both
 Bulb

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Electric Circuits
The synchronous speed for the seventh space harmonic mmf wave of 8 pole, 50 Hz induction machine will be

 107.14 rpm in forward direction.
 107.14 rpm in reverse direction.
 5250 rpm in reverse direction.
 5250 rpm in forward direction.

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Electric Circuits
Laplace transform analysis gives

 real response only.
 time domain response only.
 frequency domain response only.
 both (a) and (b).

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Electric Circuits
The capacity of a cell is measured in

  amperes.
  ampere-hour.
  watt-hours.
  watts.

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Electric Circuits
In RLC parallel circuit if current through capacitor and inductor is equal. Then What is the power factor?

 zero
 unity
 lagging
 leading

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Electric Circuits
For same voltage, the ratio resistance of 100 W lamp to resistance of 25 W lamp is

 1/4.
 1.
 4.
 16.

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