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Electric Circuits

Electric Circuits
In parallel RLC circuit under resonance condition the value of current is

 Minimum
None of these
 Maximum
 Zero

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Electric Circuits
Which of following materials has the least resistivity ?

  Copper.
  Mercury.
  Zinc.
  Lead.

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Electric Circuits
When water is added to sulphuric acid

  lot of heat is generated.
  acid particles get separated.
  water start boiling.
  colour of acid changes.

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Electric Circuits
Electrics supply for electroplating should be

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

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Electric Circuits
1 F is theoretically equal to

 none of these
 ratio of 1 V to 1 C
 1 ohm of resistance
 ratio of 1 C to 1 V

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Electric Circuits
The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be

 3 / 2 Ω.
 3 / 4 Ω.
 4 / 3 Ω.
 6 Ω.

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MORE MCQ ON Electric Circuits

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