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Discussion :: Automatic Control Systems

  1. In the given figure, of potentiometer V0 = Vi (R0/Ri) only when

    2. A.
    RL = 0
    B.
    RL = ∞
    C.
    RL is neither low nor high
    D.
    RL is low but not zero

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    Answer : Option B

    Explanation :

    If RL is not infinite, the voltage ratio of potentiometer depends on the value of RL. This is called loading effect.

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