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Electric Circuits

Electric Circuits
Fall time is the time required for a pulse to decrease from 90 to ________% if its maximum values

 15
 10
 20
 5

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Electric Circuits
Electrics supply for electroplating should be

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

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Electric Circuits
For the circuit shown in the given figure the current I is given by

 3 A.
 2 A.
 1 A.
 4 A.

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Electric Circuits
Current efficiency in electroplating is usually

  99 %.
  90 to 98 %.
  70 to 80 %.
  50 to 60 %.

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Electric Circuits
Which of the following is the correct relation?

 AD-BC = 1.
 AC-BD = 1.
 all of these.
 AB-CD = 1 .

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

 L
 C
 R
All of these

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