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Electric Circuits

Electric Circuits
Lowest current density is generally recommended for plating of

 silver.
 bronze.
 chromium.
 cadmium.

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Electric Circuits
What is called the frequency in AC operation?

 No. of (-) ve quadrature made per second.
 No. of (+) ve quadrature made per second.
 No. of wave made per second.
 No. of cycles made per second.

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Electric Circuits
What is the relation between line voltage and phase voltage in case of delta connection?

 VL = 1/ √3 VP.
 VL = √3 VP.
 None of these.
 VL = VP.

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Electric Circuits
Which variety of copper has the best mechanical strength ?

  Soft copper.
  Cast copper.
  Hard drawn copper.
  Annealed copper.

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

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Stranded aluminium.
 Copper.
 Steel.
 Aluminium.

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MORE MCQ ON Electric Circuits

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