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Electric Circuits

Electric Circuits
In active filter which element is absent?

 Both of above.
 Capacitor.
 Resistor.
 Inductor.

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Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 4R.
 0.5R.
 2R.
 R.

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Electric Circuits
Final value theorem is not applicable for which of the following?

 marginally stable systems
 stable systems
 Both 2 and 3
 unstable systems

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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

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

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Electric Circuits
In a lead acid cell PbSO4 formed during

  both during charging as well as discharging.
  discharging only.
  charging only.
  neither during charging nor discharging.

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Electric Circuits
Current locus is obtained by which of the following?

 Varying source frequency
None of these
 Either of these
 Varying any one of the circuit element

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MORE MCQ ON Electric Circuits

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