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Discussion :: Analog Electronics

  1. In a first-order low-pass active filter, if the values of the resistance and the capacitor used are 1.2 Kand 0.02µF respectively, then the cut-off frequency of the filter is
    2. A.
    3.6KHz
    B.
    8.7KHz
    C.
    8.2Hz
    D.
    6.63KHz

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    Answer : Option D

    Explanation :

    Cut “ off frequency fc = 1/2Ï€RC By substituting Ï€ = 3.14, R= 1.2 K C = 0.02µF Fc = 6.63KHz

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