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Electric Circuits

Electric Circuits
Which of the following substance when added to electrolyte promotes smooth deposition?

 Albumen.
 Any of above.
 Glucose.
 Gelatine.

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Electric Circuits
Time constant of RL series circuit is

 L/R
 RC
 2RC
 2L/R

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Electric Circuits
Millman theorem yields equivalent

 both ‘c’ and ‘d’ .
 impedance.
 voltage source.
 current source.

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Electric Circuits
Which property is used to oppose the flow of current ?

 Resistance
 Poteintial difference
 Inductance
 Capacitance

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Electric Circuits
If a function is shifted by 'T', then it is correctly represented as

 f (t) u (t-T).
 f (t-T) u (t-T).
 f (t-T) u (t).
 f (t) u (t).

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Electric Circuits
A balanced star connected load with impedance of 30j - 300 Ω is supplied from a 3 - phase, 4-wire, 173 V system, the voltages to neutral being 100j -900, 100j - 300 and 100j -1500 V. The current in neutral wire is

  zero.
  5 A.
  8.85 A.
  50 A.

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