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Electric Circuits

Electric Circuits
Which of the following has least resistivity?

 Mercury.
 Aluminium.
 Copper.
 Lead.

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Electric Circuits
A paper capacitor is usually available in form of

 rolled foil.
 disc.
 tubes.
 meshed plates.

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Electric Circuits
For the circuit shown below the value of R is adjusted so as to make the current in RL equal to zero. Calculate the value of R.

 1 Ω.
 2 Ω.
 4 Ω.
 3 Ω.

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Electric Circuits
When water is added to sulphuric acid

  lot of heat is generated.
  water start boiling.
  acid particles get separated.
  colour of acid changes.

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Electric Circuits
In the circuit shown below, what is the voltage across 5 Ω resistor?

 -28.4 V.
 -27.4 V.
 34.4 V.
 None of them

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Electric Circuits
An electric field can deflect

 gamma-rays.
 x-rays.
 neutrons.
 alpha particles.

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MORE MCQ ON Electric Circuits

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