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Electric Circuits

Electric Circuits
A wire of resistance R has it length and cross - section both doubled. Its resistance will become

 4R.
 0.5R.
 2R.
 R.

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Electric Circuits
One ampere hour charge is equivalent to

 36 coulombs.
 360 coulombs.
 36000 coulombs.
 3600 coulombs.

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Electric Circuits
Twelve 6 Ω resistor used as edge to form a cube. The resistance between two diagonally opposite corner of the cube is

 5 / 6 Ω.
 6 Ω.
 5 Ω.
 6 / 5 Ω.

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Electric Circuits
In above question, if circuit efficiency is 90 %. What will be output power ?

  35.6 kW.
  37.3 kW.
  30 kW.
  40 kW.

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Electric Circuits
A constant voltage source has

 minimum current capacity.
 minimum efficiency.
 low internal resistance.
 high internal resistance.

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Electric Circuits
Which of the following substance when added to electrolyte promotes smooth deposition?

 Albumen.
 Gelatine.
 Any of above.
 Glucose.

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MORE MCQ ON Electric Circuits

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