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Electric Circuits

Electric Circuits
Link in network theory refers to

  N - 1.
  B - N + 1.
  B - N - 1.
  N - B - 1.

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Electric Circuits
Instantaneous power in inductor is proportional to the

 square of instantaneous current.
 square of the rate of change of current.
 temperature of the inductor.
 product of the instantaneous current and rate of change of current.

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Electric Circuits
A variable capacitance is one whose capacitance

 changes with temperature.
 changes with voltage.
 can be changed manually or by mechanical force.
 changes with time.

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Electric Circuits
A capacitor having a mica dielectric εR = 6, a plate area of a 10 inches2 and a separation 0.01 inch. Find the value of C

 0 F.
 1.349 μF.
 1.349 F.
 1.349 nF.

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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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Electric Circuits
Which cell has the reversible chemical reaction?

 Mercury oxide.
 Carbon Zinc.
 Lead acid.
 Silver oxide.

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MORE MCQ ON Electric Circuits

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