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ECE :: Network Analysis and Synthesis

  1. The average value of the waveform is

  2. A.
    2 V
    B.
    0 V
    C.
    4 V
    D.
    3 V

  3. An RLC series circuit has Q = 100 and ω0 = 20 rad/sec. The bandwidth is

  4. A.
    0.2 rad/sec
    B.
    2 rad/sec
    C.
    20 rad/sec
    D.
    2000 rad/sec

  5. For making a capacitor, the dielectric should have

  6. A.
    high ∈r
    B.
    low ∈r
    C.
    r = 1
    D.
    r neither too high nor too low

  7. In an unloaded transformer, the fluxes limiting the primary and secondary are 30 mWb and 20 mWb. The coefficient of coupling is

  8. A.
    1
    B.
    0.1
    C.
    0.33
    D.
    0.67

  9. Heat in calories = I2Rt/4.186.

  10. A.
    True
    B.
    False

  11. Poles and zeros of a driving point function of a network are simple and alternate on jω axis. The network consists of

  12. A.
    R and C
    B.
    L and C
    C.
    R and L
    D.
    R, L and C

  13. For the circuit in figure, fed by a unit step voltage, vc =

  14. A.
    1 - e-t/RC
    B.
    e-t/RC
    C.
    et/RC
    D.
    1

  15. For the network of figure, z11 =

  16. A.
    5/3 Ω
    B.
    3/2 Ω
    C.
    2 Ω
    D.
    2/3 Ω

  17. In figure

  18. A.
    Wave A is lagging wave B by ∠θ
    B.
    Wave A is leading wave B by ∠θ
    C.
    Wave A is lagging wave B by ∠θ and the two waves have same rms values
    D.
    Wave A is lagging wave B by ∠θ and the two waves have different rms values

  19. The units for apparent power are watts.

  20. A.
    True
    B.
    False