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Discussion :: Automatic Control Systems

  1. For the system in the given figure, the characteristic equation is

    2. A.
    s2 + s(3 + 6a) + 6 = 0
    B.
    s2 + s(3 + 12a) + 12 = 0
    C.
    s2 + 3s = 0
    D.
    s2 + 6s = 0

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    Answer : Option A

    Explanation :

    Transfer function to inner loop = .

    Then .

    The characteristic equation is s2 + 3s + 6as + 6 = 0.

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