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Electric Circuits

Electric Circuits
A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation?

 1 W.
 5 W.
 10 W.
  64 W.

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Electric Circuits
A parallel plate capacitor has a capacitance of C farad. It area of the plates is doubled and the distance between them is half, the capacitance of the capacitor is

 2C Farad.
 C Farad.
 16C Farad.
 4C Farad.

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Electric Circuits
Electrolyte for silver plating is

  double cyanide of silver and potassium solution.
  any of above.
  potassium nitrate solution.
  dilute sulphuric acid.

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Electric Circuits
Air gap flux density is of the order of

 0.85 - 0.9 T.
 0.75 - 0.8 T.
  0.35 - 0.5 T.
  0.65 - 0.9 T.

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Electric Circuits
Which resistor will be physically larger in size?

 10 Ω, 50 W.
 1 k Ω, 1 W.
 100 Ω, 10 W.
 1 M Ω, 1/2 W.

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Electric Circuits
Four capacitors each of 40 µF are connected in parallel, the equivalent capacitance of the system will be

 40 µF
 5 µF
 10 µF
 160 µF

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MORE MCQ ON Electric Circuits

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