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A carrier wave of peak voltage 20 V is u...

A carrier wave of peak voltage 20 V is used to transmit a message signal. What should be the peak voltage of modulating signal, in order to have 80% modulating index?

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Here, `E_C = 20V, mu = 80% E_m = ?`
As `mu = E_m/E_(C) :. E_m = muE_(C) = 80/100 xx 20 = 16V`.
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