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ECE :: Signals and Systems

Signals and Systems - Section 1
Signals and Systems - Section 2
Signals and Systems - Section 3
Signals and Systems - Section 4
Signals and Systems - Section 5
Signals and Systems - Section 6
Signals and Systems - Section 7
Signals and Systems - Section 8
Signals and Systems - Section 9
Signals and Systems - Section 10
Signals and Systems - Section-11

  1. Transfer function of a linear system is 200 e-j10ω The system is a

    2. A.
    distortionless Attenuator
    B.
    amplifier with Phase distortion
    C.
    distortionless Amplifier
    D.
    attenuator with Phase distortion

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  2. which one is discrete time periodic signal?

    3. A.
    sin 3pn
    B.
    cos 2pn
    C.
    sin 3pn
    D.
    all

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  3. Frequency domain of a periodic triangular function is a

    4. A.
    discrete sinc function
    B.
    continuous sampling function
    C.
    discrete sampling function
    D.
    continuous sampling square function

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  4. The z-transform of sequence n x x[n] is

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  5. The inverse Laplace transform of

    6. A.
    eat
    B.
    -eat
    C.
    1 - eat
    D.
    -1 + eat

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  6. The function f(t) in the given figure will have its Laplace transform as

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  7. The joint probability function of two discrete random variable X and Y is given by
    x = 0, 2, y = 2, 3 then E(X) =

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  8. The effective value of the waveform in the given figure is

    9. A.
    5
    B.
    2.5
    C.
    2.5
    D.
    5.0

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  9. Which one of following is a static system?

    10. A.
    B.
    C.
    y(t) = x(t - 1)
    D.
    y(t) = ex(t)

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  10. The Laplace transform of unit ramp function starting at t = a is

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