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Electric Circuits

Electric Circuits
Which field is associated with the capacitor?

 Electric.
 Both of (A) and (B).
 Magnetic.
 None of above.

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Electric Circuits
Which quantity should be measured by the voltmeter ?

 Power
 Current
 Speed
 Voltage

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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?

 1.
 0.5.
 0.577.
 0.866.

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Electric Circuits
Which variety of copper has the best mechanical strength ?

  Hard drawn copper.
  Soft copper.
  Annealed copper.
  Cast copper.

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Electric Circuits
If c1 = 8 μF, c2 = 4 μF, c3 = 7 μF c1, c2 are in series with c3 in parallel; effective capacitance will be

 6 μF.
 2.21 μF.
 9.67 μF.
 3 μF.

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Electric Circuits
What is the dielectric material used in precision small value capacitor and capacitor used in radio frequency circuits?

 Vacuum, air.
 Oil impregnated paper.
 Glass.
 Titanium oxide.

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MORE MCQ ON Electric Circuits

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