Home / ECE / Network Analysis and Synthesis :: Section 6

ECE :: Network Analysis and Synthesis

  1. If , the network has

  2. A.
    1 H inductor and 1 F capacitor in parallel
    B.
    1 H inductor and 1 F capacitor in series
    C.
    1 H inductor and 1 Ω resistor in series
    D.
    1 H inductor and 1 Ω resistor in parallel

  3. The power dissipated in 4 Ω resistance in figure is

  4. A.
    64 W
    B.
    32 W
    C.
    16 W
    D.
    8 W

  5. The total inductance of two coils is 60 mH in series aiding connection and 40 mH in series opposing connection. The mutual inductance between coils is

  6. A.
    20 mH
    B.
    10 mH
    C.
    5 mH
    D.
    2.5 mH

  7. The transfer function of an R-L-C circuit given by The Quality factor (Q-factor) of this circuit is

  8. A.
    25
    B.
    100
    C.
    50
    D.
    5000

  9. An RC circuit initially at rest has a step signal. The response V(t) across C is V(t) = 1 - e-at, If now there is an initial voltage on C of 2 volts for the same step signal, V(t) is now

  10. A.
    1 + e -at
    B.
    1 + 2e -at
    C.
    2 - e -at
    D.
    3 - e -at

  11. In the network of the figure is the maximum power is delivered to RL if its value is

  12. A.
    16 Ω
    B.
    40/3 Ω
    C.
    60 Ω
    D.
    20 Ω

  13. A two-port network is represented by ABCD parameters given by

    If port is terminated by RL, then input impedance seen at port 1 is given by


  14. A series circuit having R = 3 Ω and L = 2 H is excited by a 10 V battery. At t = 0+, di/dt is

  15. A.
    5 A/s
    B.
    C.
    20 A/s
    D.
    15 A/s

  16. Three resistances of 15 Ω, 10 Ω and 3 Ω are connected in parallel. The overall resistance is

  17. A.
    less than 3 Ω
    B.
    between 15 and 10 Ω
    C.
    between 10 and 3 Ω
    D.
    more than 3 Ω

  18. In figure, the switch is closed at t = 0. At t = 0+ The value of current supplied by battery is

  19. A.
    1 A
    B.
    2 A
    C.
    zero
    D.
    infinity