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Electric Circuits

Electric Circuits
The form factor of sinusoidal alternating current is

 0.
 1.11.
 1.
 1.15.

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Electric Circuits
What will be the capacitance when distance between the 2 plates of a condenser of capacitance 8 micro farad is reduced from 10 mm to 4 mm?

 8 microfarad.
 3.2 microfarad.
 1 microfarad.
 20 microfarad.

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Electric Circuits
The delta equation of given star connected impedance ZQR is equal to

  (10 + j30) Ω.
 (5 + j10 / 3) Ω.
 40 Ω.
 (20 + j10) Ω.

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Electric Circuits
The term trickle charge is associated with

 silver zinc battery.
 lead acid battery.
 dry cell.
 nickel iron battery.

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Electric Circuits
If the practical units of voltage and current wave each made 20 times as large as they are at present, what would be the consequent alternation in the size of the unit of capacitance?

 200 times.
 Nil.
 60 times.
 20 times.

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Electric Circuits
The active and reactive power in an AC circuit are 10W and 20VAR respectively. What is the power factor?

 0.866.
 1.
 0.577.
 0.5.

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