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Electric Circuits

Electric Circuits
In foster 1 form 1st element is

 capacitor.
 none.
 inductor.
 both.

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Electric Circuits
Aluminium is produced from bauxite by

  rotating.
  oxidation.
  froth flotation.
  electrolytic process.

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Electric Circuits
Which quantity consists of a unit 1KWh ?

 Energy
 Charge
 Power
 Time

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Electric Circuits
Poorest conductor of electricity is

  Carbon.
  Steel.
  Silver.
  Aluminium.

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Electric Circuits
If a capacitors of capacitance 100 μF is connected across a voltage source of 10 V, then what will be the energy stored in that capacitor?

 10 × 10 - 3 Joule.
 10 × 10 6 Joule.
 5 × 10 - 3 Joule.
 5 × 10 - 2 Joule.

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Electric Circuits
The inductive reactance of an electric circuit is 200 Ohms. The frequency of supply becomes doubled. What is the new capacitive reactance?

 200 Ohms.
 50 Ohms.
 400 Ohms.
 100 Ohms.

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