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ECE :: Network Analysis and Synthesis

Network Analysis and Synthesis - Section 1
Network Analysis and Synthesis - Section 2
Network Analysis and Synthesis - Section 3
Network Analysis and Synthesis - Section 4
Network Analysis and Synthesis - Section 5
Network Analysis and Synthesis - Section 6
Network Analysis and Synthesis - Section 7
Network Analysis and Synthesis - Section 8
Network Analysis and Synthesis - Section 9
Network Analysis and Synthesis - Section 10
Network Analysis and Synthesis - Section 11
Network Analysis and Synthesis - Section 12
Network Analysis and Synthesis - Section 13
Network Analysis and Synthesis - Section 14
Network Analysis and Synthesis - Section 15
Network Analysis and Synthesis - Section 16
Network Analysis and Synthesis - Section 17
Network Analysis and Synthesis - Section 18
Network Analysis and Synthesis - Section 19
Network Analysis and Synthesis - Section 20
Network Analysis and Synthesis - Section 21
Network Analysis and Synthesis - Section 22
Network Analysis and Synthesis - Section 23
Network Analysis and Synthesis - Section 24
Network Analysis and Synthesis - Section 25
Network Analysis and Synthesis - Section 26
Network Analysis and Synthesis - Section 27

  1. A two port network is symmetrical if

    2. A.
    z11 z12 - z12 z21 = 1
    B.
    AD - BC = 1
    C.
    h11 h22 - h12 h41 = 1
    D.
    y11 y22 = y12 y21 = 1

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  2. In a varistor, as the voltage increases beyond a certain value, its resistance

    3. A.
    rapidly increases
    B.
    rapidly decreases
    C.
    becomes negative, i.e., varistor goes into negative resistance region
    D.
    none of these

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  3. Current through a charging capacitor exhibits

    4. A.
    an exponential growth function
    B.
    an exponential decay function
    C.
    a step decay function
    D.
    a linear decay function

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  4. A battery charger can drive a current of 5A with 1Ω resistance connected at its output. If it can charge 2 V battery at 7 A rate, its Thevenin's equivalent circuit will be

    5. A.
    7.5 in series with 0.5 Ω resistance
    B.
    1.25 V in series with 1.5 Ω resistance
    C.
    7.5 V in parallel with 0.5 Ω resistance
    D.
    12.5 V in parallel with 1.5 Ω resistance

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  5. For the given circuit, the current I is

    6. A.
    2 A
    B.
    5 A
    C.
    7 A
    D.
    8 A

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  6. Assertion (A): In an R-L circuit having low resistance, current lags the voltage by nearly 90°.

    Reason (R): Power factor of a series RL circuit is R/Z.

    7. A.
    Both A and R are true and R is correct explanation of A
    B.
    Both A and R are true and R is not the correct explanation of A
    C.
    A is true but R is false
    D.
    A is false but R is true

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  7. Two coils are so wound that 60% of the flux of one links the other. The coefficient of coupling is

    8. A.
    1.67
    B.
    0.6
    C.
    0.36
    D.
    0.216

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  8. In the graph of figure, the total number of trees is

    9. A.
    4
    B.
    5
    C.
    6
    D.
    8

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  9. In a sine wave, maximum rate of change of voltage occurs at

    10. A.
    ascent of the waveform
    B.
    + ve maximum
    C.
    - ve maximum
    D.
    between maximum and minimum

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  10. Which of the following statements is incorrect?

    11. A.
    A mesh with two resistors has two mesh currents
    B.
    The algebraic sum of all voltages around any mesh or any loop must be zero
    C.
    The principle node is a function where branch current can divide or combine
    D.
    A Norton is a series circuit

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