Home / ECE / Network Analysis and Synthesis :: Section 21

ECE :: Network Analysis and Synthesis

  1. For ideal performance, a filter should be terminated in characteristic impedance.

  2. A.
    True
    B.
    False

  3. For a symmetrical network

  4. A.
    h11 = h22
    B.
    h12 = h21
    C.
    h11 h22 - h12 h21 = 0
    D.
    h11 h22 - h12 h21 = 1

  5. The time constant of a series R-C circuit is given by

  6. A.
    R/C
    B.
    RC2
    C.
    RC
    D.
    R2C

  7. The function is an

  8. A.
    LC function
    B.
    RC function
    C.
    RL function
    D.
    LC or RC function

  9. If L [f(t)] = F(s), Lf(t - T)

  10. A.
    esTF(s)
    B.
    e-sTF(s)
    C.
    F(s) - e-sT
    D.
    F(s) + e-sT

  11. Paper capacitors are used in power supplies for filtering.

  12. A.
    True
    B.
    False

  13. The transfer function of a system is given by H(s) = 1/s2 (s - 2). The impulse response of the system is

  14. A.
    (t2* e-2t) U(t)
    B.
    (t* e2t) U(t)
    C.
    (te-2t) U(t)
    D.
    (te2t) U(t)

  15. In any two port network, input impedance is independent of load impedance.

  16. A.
    True
    B.
    False

  17. Dielectric materials have high specific resistance.

  18. A.
    True
    B.
    False

  19. The resistance of a standard conductor.

  20. A.
    increases with frequency
    B.
    same for ac and dc
    C.
    increases with frequency
    D.
    increases as square root of frequency