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Electric Circuits

Electric Circuits
Time constant of RL series circuit is

 RC
 L/R
 2L/R
 2RC

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Electric Circuits
Galvanizing is the coating of

 brass.
 lead.
 zinc.
 chromium.

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Electric Circuits
Average power taken by the pure capacitor is

 Minimum
 Any of the above
 Maximum
 Zero

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Electric Circuits
During electroplating the amounts of different substances liberated by same quantity of electricity are proportional to their

  valency.
  chemical equivalents.
  atomic numbers.
  atomic weights.

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Electric Circuits
If the dielectric of a capacitor is replaced by conducting material

 the capacitor can store infinite charge.
 the capacitance value of the plate will decrease.
 the capacitor will get heated up due to eddy currents.
 the plate will get short circuited.

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Electric Circuits
Internal resistance of ideal voltage source is

 100 ohms
 zero
 infinite
 finite

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MORE MCQ ON Electric Circuits

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