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ECE :: Network Analysis and Synthesis

  1. When an ac circuit has sources of different frequencies, the only method of analysis is superposition theorem.

  2. A.
    True
    B.
    False

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  3. In a Parallel connection of circuit the bandwidth in terms of R, L, C is

  4. A.
    B = 1/RC
    B.
    B = 1/RL
    C.
    B = 1/RLC
    D.
    B = RLC

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  5. It two voltages are v1 = 100 sin (ωt - 30°) and v2 = cos ω t then

  6. A.
    v1 is leading v2 by 30°
    B.
    v2 is leading v1 by 30°
    C.
    v2 is leading v1 by 60°
    D.
    v1 is leading v2 by 60°

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  7. In a purely inductive ac circuit the power curve is a sinusoid of the same frequency as the voltage.

  8. A.
    True
    B.
    False

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  9. The superposition theorem is applicable to

  10. A.
    linear, non-linear and time variant responses
    B.
    linear and non-linear resistors only
    C.
    linear responses only
    D.
    none of the above

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  11. Which one of the following functions is RC driving point impedance?

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  13. The current flowing through a pure capacitor is called displacement current.

  14. A.
    True
    B.
    False

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  15. For figure, the incidence matrix A is

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  17. An active network has

  18. A.
    an e.m.f source
    B.
    a current source
    C.
    neither of the above
    D.
    either (a) or (b)

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  19. Which of the following material has nearly zero temperature-coefficient of resistance?

  20. A.
    Carbon
    B.
    Porcelain
    C.
    Copper
    D.
    Manganin

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