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  1. The system shown in figure remains stable when :

    2. A.
    k £ - 1
    B.
    -1 < k < 1
    C.
    l < k < 3
    D.
    k > 3

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    Answer : Option D

    Explanation :

    Pi = 1 x k x s-1 x 1 ⇒

    , L2 = k x s-1

    System will be stable when k - 3 > 0 or k > 3.

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