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ECE :: Network Analysis and Synthesis

  1. To neglect a current source the terminals across the source are

  2. A.
    replaced by some resistance
    B.
    replaced by capacitance
    C.
    open-circuited
    D.
    short-circuited

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  3. At very low temperatures, semiconducting materials behave as insulators.

  4. A.
    True
    B.
    False

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  5. The series element for a prototype high pass filter is

  6. A.
    resistive
    B.
    inductive
    C.
    capacitive
    D.
    combination of L and C

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  7. The scale factor for half wave and full wave rectifier is __________ respectively.

  8. A.
    1.11, 1.414
    B.
    1.11, 1.57
    C.
    1.57, 1.11
    D.
    1.414, 1.11

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  9. The time constant of a series RL circuit is

  10. A.
    LR
    B.
    L/R
    C.
    R/L
    D.
    e-R/L

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  11. The two conductors of a single phase transmission line suspended in air carry currents in opposite directions. The force per unit length on each conductor varies

  12. A.
    directly as the current in either conductor
    B.
    directly as the distance between the two conductors
    C.
    directly as the square of the current in either conductor
    D.
    inversely as the square of the distance between the two conductors

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  13. Which of the following is correct?

  14. A.
    y22 = z22/|z|
    B.
    y11 = z22/|z|
    C.
    z11 = y11/|y|
    D.
    z22 = y22/|y|

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  15. The transfer function G12 (s) for a two port is

  16. A.
    V2/V1
    B.
    V2 (s)/V1 (s)
    C.
    V2 (s)/I1 (s)
    D.
    I2 (s)/I1 (s)

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  17. If admittance of a circuit is defined as , then at resonance

  18. A.
    mp = ql
    B.
    mq = pl
    C.
    ml = pq
    D.
    none

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  19. If impedance of a circuit is defined as then circuit is said to be in resonance if

  20. A.
    ab = cd
    B.
    bc = ad
    C.
    ac = bd
    D.
    none

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