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  1. A 12 kHz pulse wave-form is amplified by a circuit having an Upper cut-off frequency of 1 MHz. The minimum input pulse width that can be accurately reproduced is

    2. A.
    83.33 μ sec
    B.
    1 μ sec
    C.
    0.1 m sec
    D.
    3.5 m sec

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    Answer : Option B

    Explanation :

    tr = 10% Pω = minimum Power(P) = 10 tr 10 x 0.35 μ sec = 3.5 μ sec.

    Note: The I/P Pulse will be severely distorted if the rise time is more than 10% of Pulse width.

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