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Electric Circuits

Electric Circuits
In what connection we get neutral?

  Delta.
  Both A and B.
  Mesh.
  Star.

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Electric Circuits
The delta equation of given star connected impedance ZQR is equal to

  (10 + j30) Ω.
 40 Ω.
 (5 + j10 / 3) Ω.
 (20 + j10) Ω.

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Electric Circuits
In a delta network each element has value R. The value of each element in equivalent star network will be

 R / 4.
 R / 2.
  R / 3.
 R / 6.

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Electric Circuits
A series circuit consists of R = 20 Ω, L = 20 mH, and AC supply 60 V with f = 100 Hz. The voltage drop across R is

  30.6 V.
 40.8 V.
 24.4 V .
  50.8 V.

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Electric Circuits
The Laplace Transform of a shifted unit step f (t) = U (t-a) is

 s(1-e-as).
 (e-as)/s.
 e-as.
 se-as.

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Electric Circuits
From the given figure find the R3

 25 ohm
 25 kilo ohm
 25 mili ohm
 25 mega ohm

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MORE MCQ ON Electric Circuits

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