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ECE :: Network Analysis and Synthesis

  1. In the circuit of figure

  2. A.
    Va would always lag Vb
    B.
    Va would always lead Vb
    C.
    Va and Vb can be in phase
    D.
    phase angle between Va and Vb would always be 90°

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  3. As per BIS, solid insulators are classified into 6 categories.

  4. A.
    True
    B.
    False

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  5. Dielectric constant of air is about 5.

  6. A.
    True
    B.
    False

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  7. Consider the following units

    1. sec-1
    2. rad2/sec2
    3. sec
    4. Ω
    The units of , RC and are respectively

  8. A.
    1, 2, 4, 3
    B.
    3, 2, 1, 4
    C.
    2, 4, 1, 3
    D.
    1, 2, 3, 4

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  9. In a conductor, voltage v, conductance G and charges q are related as

  10. A.
    B.
    C.
    v = Gq
    D.
    q = vG

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  11. The current wave in figure is passed through 3 H inductor. The voltage across inductance during the period 2 < t < 3 seconds is

  12. A.
    12 V
    B.
    - 12 V
    C.
    6 V
    D.
    - 6 V

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  13. In figure, the charge on 0.8 μF capacitor is

  14. A.
    100 μC
    B.
    50 μC
    C.
    40 μC
    D.
    20 μC

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  15. Maximum power transfer theorem finds application in

  16. A.
    power circuits
    B.
    distribution circuits
    C.
    communication circuits
    D.
    both power and communication circuits

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  17. In a series L-C circuit fed by ac voltage, voltage drops across L and C are 40 V and 30 V respectively. The supply voltage is

  18. A.
    70 V
    B.
    10 V
    C.
    50 V
    D.
    1.333 V

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  19. In a reactance function

  20. A.
    all poles are simple
    B.
    all poles and zeros are simple
    C.
    all poles and zeros are simple and lie on jω axis only
    D.
    all poles and zeros lie on negative real axis

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