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ECE :: Network Analysis and Synthesis

  1. Complex poles give rise to oscillatory terms in the response.

  2. A.
    True
    B.
    False

  3. While drawing vector diagram for a series circuit, the reference vector is

  4. A.
    voltage
    B.
    current
    C.
    power
    D.
    phase angle

  5. In all insulators the bonding is covalent.

  6. A.
    True
    B.
    False

  7. In a purely resistive circuit the instantaneous power varies from zero to maximum twice in each cycle.

  8. A.
    True
    B.
    False

  9. In terms of ABCD parameters, the image parameter Z11 is equal to

  10. A.
    AC/BD
    B.
    BD/AC
    C.
    AB/CD
    D.
    AD/BC

  11. A coil with large distributed capacitance has a

  12. A.
    high resonant frequency
    B.
    low resonant frequency
    C.
    low quality factor
    D.
    low resistance

  13. The voltage transfer functions of two port circuits connected in cascade can be easily found from

  14. A.
    product of individual ABCD matrices
    B.
    product of voltage transfer functions of two networks
    C.
    sum of z matrices
    D.
    sum of h matrices

  15. In figure the number of tree branches and links respectively are

  16. A.
    3 and 2
    B.
    1 and 3
    C.
    4 and 1
    D.
    1 and 4

  17. For a transfer function the coefficients of the numerator and denominator polynomials in s must be real.

  18. A.
    True
    B.
    False

  19. A steel bar needs 1200 AT to magnetise it. The voltage that must be applied to the magnetising coil of 100 turns and 10 Ω resistance is __________ volt.

  20. A.
    120
    B.
    12
    C.
    1200
    D.
    10