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Electric Circuits

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

 Albumen.
 Any of above.
 Gelatine.
 Glucose.

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Electric Circuits
If C be the capacitance, V be the potential difference and I be the current, then I / CV will have the unit of

 time.
 frequency.
 reactive power.
 power.

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Electric Circuits
Common impurity in battery electrolyte is

 lead sulfate.
 dust.
 iron.
 sodium chloride.

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Electric Circuits
A variable capacitance is one whose capacitance

 changes with time.
 can be changed manually or by mechanical force.
 changes with voltage.
 changes with temperature.

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Electric Circuits
The ratio of the resistance of a 200 W, 230 V lamp to that of a 100 W, 115 V lamp will be

  0.5.
  2.
 4.
 0.25.

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Electric Circuits
If the peak value of a sine wave is 100 V, then its RMS value will be

 100 V.
 70.7 V.
 88 V.
 63.6 V.

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