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ECE :: Network Analysis and Synthesis

  1. Which of the following pairs are correctly matched?

    1. Brune's realisation : realisation with ideal transformer.
    2. Cauer realisation : ladder realisation.
    3. Bott Duffin realisation : with non ideal transformer.
    Select the answer using the following codes:

  2. A.
    1, 2 and 3
    B.
    2 and 3
    C.
    1 and 3
    D.
    1 and 2

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  3. The synthesis of minimum function was suggested by

  4. A.
    O'Brune
    B.
    R. Richards
    C.
    Bott and Duffin
    D.
    none of the above

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  5. C = (2) (energy)/V2

  6. A.
    True
    B.
    False

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  7. A 3 phase balanced supply feeds 3 phase unbalanced load. Power supplied to the load can be measured by using

    1. 2 wattmeter
    2. one wattmeter
    3. 3 wattmeter
    Which of the above statements is correct?

  8. A.
    1 and 2
    B.
    1 and 3
    C.
    2 and 3
    D.
    3 alone

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  9. Which of the following is correct for a driving point functions?

  10. A.
    The real parts of all poles must be negative
    B.
    The real parts of all poles and zeros must be negative
    C.
    The real parts of all poles and zeros must be negative or zero
    D.
    The real parts of all zeros must be negative

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  11. An infinite ladder is constructed with 1 Ω and 2 Ω resistors shown below.

  12. A.
    8.18 A
    B.
    0 A
    C.
    9 A
    D.
    can't determined

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  13. In the circuit of figure the voltage across capacitor when switch is closed at t = ∞ is

  14. A.
    0 V
    B.
    20 V
    C.
    very large
    D.
    7.5 V

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  15. In the series circuit shown in figure, for series resonance, the value of the coupling coefficient, K will be

  16. A.
    0.25
    B.
    0.5
    C.
    0.1
    D.
    1

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  17. The degree of the nodes 1, 2, 3, 4 is

  18. A.
    2
    B.
    3
    C.
    2 for 1, 2, 3, and 3 for 4
    D.
    all 3

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  19. In an RC series circuit R = 100 Ω and XC = 10 Ω. In this circuit

  20. A.
    the current and voltage are in phase
    B.
    the current leads the voltage by about 6°
    C.
    the current leads the voltage by about 84°
    D.
    the current lags the voltage by about 6°

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