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Electric Circuits

Electric Circuits
Which of following capacitor will have least value of breakdown voltage?

 Mica.
 Paper.
 Ceramic.
 Electrolytic.

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Electric Circuits
Which of following is the unit of magnetic flux density?

 Lumens.
 Daraf.
 Tesla.
 Weber.

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Electric Circuits
The capacitive reactance of an electric circuit is 50 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 25 Ohms.
 100 Ohms.
 50 Ohms.
 200 Ohms.

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Electric Circuits
Aluminium is produced from bauxite by

  electrolytic process.
  oxidation.
  froth flotation.
  rotating.

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Electric Circuits
What is the frequency of domestic power in India?

 60 Hz.
 220 Hz.
 50 Hz.
 70 Hz.

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Electric Circuits
The absolute charge of an electron is

 - 1.6 × 10-19 C.
 + 1.6 × 10-19 C.
 1.6 × 10-19 C.
 none of above.

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