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The maximum and minimum amplitudes of a ...

The maximum and minimum amplitudes of a modulated wave are `15 V` and `5 V`, respectively. Find the amplitude (in volt) of the modulating wave.

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Knowledge Check

  • The maximum and minimum amplitude of AM wave is found to be 15 V and 3 V , respectively . The amplitudes of carrier wave and modulating wave will be

    A
    9 and 6 V
    B
    6 and 9 V
    C
    18 and 9 V
    D
    24 and 16 V

  • if the maximum and minimum voltage of AM wave are V_(max) and V_(min) , respectively then modulation factor

    A
    `m=(V_(max))/(V_(max)+V_(min))`
    B
    `m=(V_(min))/(V_(max)+V_(min))`
    C
    `(V_(max)+V_(min))/(V_(max)-V_(min))`
    D
    `(V_(max)-V_(min))/(V_(max)+V_(min))`.

  • If the maximum and minimum voltages of an AM wave are V_(max.)andV_(min.) respectively then modulation factor -

    A
    `m=(V_(max.))/(V_(max.)+V_(min.))`
    B
    `m=(V_(min.))/(V_(max.)+V_(min.))`
    C
    `m=(V_(max.)+V_(min.))/(V_(max.)-V_(min.))`
    D
    `m=(V_(max.)-V_(min.))/(V_(max.)+V_(min.))`

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    If the maximum amplitude of an amoplitude modulated wave is 25 V and the minimum amplitude is 5V, the modulation index is

    A modulated carrier wave has minimum and minimum amplitudes of 900 m V and 300 mV respectively. What is the percentage modulation index ?

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