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Electric Circuits

Electric Circuits
The value of unity impulse function at time (t) = 0 is

 indeterminate.
 0.
 1.
 infinite.

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Electric Circuits
Cascade connection of two port networks is analyzed through

 ABCD parameters.
 Z parameters.
 h parameters.
 Y parameters.

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Electric Circuits
Energy efficiency during electroplating is usually in the range

 80 to 85%.
 85 to 90%.
 50 to 80%.
 90 to 99%.

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Electric Circuits
If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance

  n2 / R.
  R / n2.
  n2R.
  nR .

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Electric Circuits
From the circuit diagram shown in question 1 find the Norton current.

 2.5 A.
 2 A.
 4 A.
 1 A.

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Electric Circuits
Two resistances R1 and R2 give combined resistances 4.5 Ω and 1 Ω when they are connected in series and parallel respectively. What would be the values of these resistances?

  3 Ω and 6 Ω.
 6 Ω and 9 Ω.
 3 Ω and 9 Ω.
  1.5 Ω and 3 Ω.

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