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Electric Circuits

Electric Circuits
The average value of half wave rectified sinusoidal current waveform, whose maximum value is 1A is

 0.637 A.
 0.5 A.
 1 A.
 0.318 A.

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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 current in R is

 1.27 A.
 5.08 A.
 2.54 A.
 10.16 A.

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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 L is

  39.1 V.
 45.5 V.
 50.5 V.
  31.9 V.

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Electric Circuits
The form factor of sinusoidal alternating current is

 1.
 0.
 1.11.
 1.15.

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

 e-as.
 (e-as)/s.
 s(1-e-as).
 se-as.

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Electric Circuits
Among the options which metal has the highest electrical conductivity?

 Steel.
 Aluminium.
 Copper.
 Stranded aluminium.

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MORE MCQ ON Electric Circuits

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