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Electric Circuits

Electric Circuits
In series RLC circuit to get Q>1, which of the following is required?

 XL > R
 XL = R
 XL < R
All of these

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Electric Circuits
The current in a chemical cell is a movement of

  positive ions only.
  positive and negative ions.
  negative ions only.
 positive hole charges.

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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/3
None of these
 P
 3P

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Electric Circuits
When water is added to sulphuric acid

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

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Electric Circuits
A capacitor has a capacitance of 6 μF. Calculate the stored energy in it if a DC voltage of 100 V, is applied across it?

 2.5 × 102 joules.
 4 × 102 joules.
 6 × 102 joules.
 3 × 102 joules.

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Electric Circuits
In foster 1 form 1st element is

 both.
 capacitor.
 none.
 inductor.

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