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Electric Circuits

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

All of these
 R
 C
 L

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Electric Circuits
Electrics supply for electroplating should be

 low frequency ac voltage.
 DC voltage.
 any of above.
 low AC voltage.

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Electric Circuits
What is the SI unit of electric current ?

None of these
 Faraday.
 Ampere.
 Ohm.

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Electric Circuits
Current magnification will occur in which of the following case?

 Both
None of these
 Parallel resonance
 Series resonance

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Electric Circuits
Kirchhoffs laws are valid for

  passive time invariant circuits.
  both linear and non-linear circuits.
  non-linear circuits only.
  linear circuit only.

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Electric Circuits
When AC flows through a pure capacitance then the current

 leads the emf by - 90o.
 lags the emf by 90o.
 leads the emf by 90o.
 is in phase with emf.

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