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Discussion :: Analog Electronics

  1. In a first-order high-pass active filter, if the resistance and the capacitance used are 2.1 Kand 0.05µF respectively, then the cut-off frequency of the filter is _________
    2. A.
    15KHz
    B.
    1.5KHz
    C.
    3.5KHz
    D.
    0.95KHz

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    Answer : Option B

    Explanation :

    Cut- off frequency fc = 1/2Ï€RC After substituting the given values fc = 1.5KHz

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