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Electric Circuits

Electric Circuits
The unit of electric field intensity is

 F / m.
 N / C.
 N / Ampere.
 F/ m2.

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Electric Circuits
The capacitance of a parallel plate capacitor can be varied by

 changing the overlapping area of the plates only.
 changing the distance between the plates only.
 changing the dielectric medium only.
All of these

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Electric Circuits
Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances?

  3 Ω and 6 Ω.
  1.5 Ω and 3 Ω.
 6 Ω and 9 Ω.
 3 Ω and 9 Ω.

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Electric Circuits
From the given figure find the R3

 25 mega ohm
 25 kilo ohm
 25 mili ohm
 25 ohm

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Electric Circuits
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

 10 µF
 25 µF
 1 µF
 5 µF

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Electric Circuits
Electrics supply for electroplating should be

 low AC voltage.
 DC voltage.
 low frequency ac voltage.
 any of above.

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MORE MCQ ON Electric Circuits

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