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Electric Circuits

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

 R
 L
All of these
 C

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Electric Circuits
For balanced star load, if unbalanced line current are IR, IY, IB equal to - j10, - j10 and - j20 respectively, the neutral current will be equal to

  (8.66 + j5) A.
  (-9.66 + j5) A.
  (8.66 - j5) A.
  (-8.66 - j5) A.

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Electric Circuits
When water is added to sulphuric acid

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

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Electric Circuits
For symmetrical wave form average value of one full cycle is

 2.22
 1.11
 1
 0

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Electric Circuits
In steady state condition capacitor acts as a

 current source
 voltage source
 short circuit
 open circuit

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Electric Circuits
Coating generally recommended for hard surfacing is

None of these
 copper plating.
 chromium plating.
 lead plating.

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