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Electric Circuits

Electric Circuits
What is the SI unit of electric current ?

 Faraday.
 Ampere.
None of these
 Ohm.

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Electric Circuits
The resistivity of the conductor depends on

 type of material.
 area of the conductor.
 none of these.
 length of the conductor.

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Electric Circuits
When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of heater will

  decrease.
  increase.
  remain constant.
  none of these.

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

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

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Electric Circuits
The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be

 4.
  2.
  0.5.
 0.25.

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Electric Circuits
Three capacitors each of capacity C are given. The resultant capacity (2/3) C can obtained by using them

 two in series and third in parallel across this combination.
 two in parallel and third in series with this combination.
 all in series.
 all in parallel.

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MORE MCQ ON Electric Circuits

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