Home / ECE / Network Analysis and Synthesis :: Section 20

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

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


  4. 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

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

  6. A function f(t) = k is

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

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

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

  10. Choose the correct option

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

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


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

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

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

  16. 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

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

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