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Question : 10
Total: 26
A carrier wave of peak voltage 15 V is used to transmit a message signal. Find the peak voltage of the modulating signal in order to have a modulation index of 60 % .
Solution:
Formula for modulation index
Finding the peak value of the modulating signal
We have,µ =
Here,µ = 60 % =
∴ A m = µ A c =
× 15 V = 9 V
Finding the peak value of the modulating signal
We have,
Here,
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