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Electric Circuits

Electric Circuits
Which of the following quantities consists of SI unit as WATT ?

 Force
 Current
 Charge
 Power

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Electric Circuits
Five capacitors each of 5 µF are connected in series, the equivalent capacitance of the system will be

 10 µF
 5 µF
 25 µF
 1 µF

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Electric Circuits
In the figure, the potential difference between points P and Q is

 10 V.
 6 V.
 12 V.
 - 6 V.

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Electric Circuits
Aluminium is produced from bauxite by

  electrolytic process.
  rotating.
  oxidation.
  froth flotation.

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Electric Circuits
Which material has extremely large resistance?

 Insulator
 Conductor
 Semiconductor
None of these

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Electric Circuits
The energy stored by a capacitor is given by

 all of them.
 1/2 QV.
 Q2 / 2C.
 1/2 CV2.

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