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Electric Circuits

Electric Circuits
Energy efficiency during electroplating is usually in the range

 80 to 85%.
 50 to 80%.
 85 to 90%.
 90 to 99%.

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

 Aluminium.
 Copper.
 Stranded aluminium.
 Steel.

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Electric Circuits
Find the total power absorbed by the resistor in the given circuit.

 12 W.
 24 W.
  6 W.
 30 W.

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Electric Circuits
At which of the following frequency voltage across capacitor has maximum value for series circuit ?

 Less than resonance frequency
 Greater than resonance frequency
 Zero frequency
 Equal to resonance frequency

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Electric Circuits
If P is the power of a star connected system then what will be power of an equivalent delta connected system?

 P
None of these
 3P
 P/3

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Electric Circuits
By which of the following elements transients will not occur?

 L
All of these
 R
 C

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