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ECE :: Network Analysis and Synthesis

  1. Substitution theorem applies to

  2. A.
    Linear network
    B.
    Non linear network
    C.
    Linear time invariant network
    D.
    Any network

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  3. In figure, i = Im sin ωt. If v = 0, ω =

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  5. An R-L circuit has an initial current of 5 A. In the s-domain equivalent circuit, the voltage source to take into account the initial current has a strength of

  6. A.
    5L volts
    B.
    5/L volts
    C.
    5L2 volts
    D.
    5/L2 volts

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  7. A function f(t) = k is

  8. A.
    stable
    B.
    marginal stable
    C.
    unstable
    D.
    none

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  9. Transient current in a loss free LC circuit when excited from an ac source is an __________ sine wave.

  10. A.
    undamped
    B.
    over damped
    C.
    under damped
    D.
    critically damped

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  11. Choose the correct option

  12. A.
    tree does not contain any loop
    B.
    tree contain all the nodes
    C.
    tree is always open
    D.
    all

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  13. The y parameters of a four terminal network are . A one ohm resistance is connected as shown in figure. The new y parameters are

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  15. What would be the rms value of a sine wave having the same peak value as that of the above mentioned periodic wave?

  16. A.
    42.2 V
    B.
    19 V
    C.
    38.2 V
    D.
    none

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  17. Which of the following is true for RC impedance?

  18. A.
    The lowest critical frequency is a pole
    B.
    The lowest critical frequency is zero
    C.
    The lowest critical frequency may be pole or zero
    D.
    The lowest critical frequency is a pole but cannot be at s = 0

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  19. In a series RLC circuit for lower frequency power factor is __________ .

  20. A.
    leading, Lagging
    B.
    lagging, Leading
    C.
    independent of frequency
    D.
    same

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