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Electric Circuits

Electric Circuits
In active filter which element is absent?

 Resistor.
 Inductor.
 Capacitor.
 Both of above.

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Electric Circuits
In direct arc furnace which of following is of high value?

 All of above.
 Current.
 Power factor.
 Voltage.

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Electric Circuits
For Norton’s equivalent circuit

 Voc = Req /Isc.
 Isc = Voc / Req.
 Isc = Voc Req.
 Voc = Isc / Req.

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Electric Circuits
If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance

  R / n2.
  n2R.
  nR .
  n2 / R.

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

 lagging
 leading
 zero
 unity

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Electric Circuits
Which of the following is the correct relation?

 all of these.
 AB-CD = 1 .
 AD-BC = 1.
 AC-BD = 1.

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MORE MCQ ON Electric Circuits

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