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ECE :: Exam Questions Paper

  1. The circuit is shown in figure.

    The current transfer ratio , is

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  3. Let f(A, B) = A ⊕ B; then the simplified form of the function f(f(xy, z)w) is

  4. A.
    (xyz)w
    B.
    xyzw
    C.
    (xyz) + w
    D.
    none of these

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  5. A system has 12 poles or 2 zeros. Its high frequency asymptote in its magnitude plot has slope of

  6. A.
    -200 dB/decade
    B.
    -240 dB/decade
    C.
    -280 dB/decade
    D.
    -320 dB/decade

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  7. (1 2 1)x = (1 0 0)4 Then x is equal to

  8. A.
    2
    B.
    3
    C.
    5
    D.
    does not exist

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  9. For the network shown below, the Thevenin voltage and RTH is equal to __________

  10. A.
    0 V, 58.82 Ω
    B.
    0 V, 96.774 Ω
    C.
    0 V, 3 KΩ
    D.
    None of these

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  11. Impedance function for the network shown below is:

  12. A.
    (3s + 1)
    B.
    C.
    D.
    2s + 3

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  13. The function f = A ⊕ B ⊕ A ⊕ D ⊕ E ⊕ C ⊕ D ⊕ E ⊕ F ⊕ G ⊕ F ⊕ G ⊕ C ⊕ E ⊕ A ⊕ D ⊕ B ⊕ E ⊕ EB ⊕ B ⊕ B ⊕ B ⊕ D can be written as

  14. A.
    A ⊕ B ⊕ D
    B.
    A ⊕ B ⊕ E
    C.
    A ⊕ E
    D.
    AE

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  15. Which of the following functions would have only odd powers of x in its Taylor series expansion about the point x = 0?

  16. A.
    sin (x3)
    B.
    sin (x2)
    C.
    cos (x3)
    D.
    cos (x2)

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  17. Find the maximum power that can be delivered to a load

  18. A.
    0.025 W
    B.
    2.5 W
    C.
    2.5 W
    D.
    0.25 W

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  19. For a integrator circuit, Ri = 100 KΩ, CF = 10 μF. The input is a step dc voltage as shown below. Its output will be

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