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Electric Circuits

Electric Circuits
Aluminium is produced from bauxite by

  froth flotation.
  oxidation.
  rotating.
  electrolytic process.

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t) u (t-T).
 f (t-T) u (t).
 f (t) u (t).
 f (t-T) u (t-T).

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Electric Circuits
From the circuit diagram shown in question 1 find the maximum power transferred to the load.

 4.547 W.
 9 W.
 15.247 W.
 1.875 W.

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Electric Circuits
Say A point has an absolute potential of 40 V and point B has an absolute potential of - 10 V, then what will be the value of VBA ?

  - 50 V.
 50 V.
  30 V.
  none of above.

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Electric Circuits
The value of specific gravity of acid when a lead acid battery is fully charged is

 1.285.
 2.9585.
 2.585.
 2.185.

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Electric Circuits
The arrangement of 12 cells each of internal resistance 1.5 Ohm to give maximum current in external load resistance of 2 Ohm will be

 all 12 in parallel.
 in 3 parallel rows each row having 4 cells in series.
 in 4 parallel rows each row having 3 cells in series.
 all 12 in series.

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