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A carrier wave of peak voltage 12 V is u...

A carrier wave of peak voltage `12 V` is used to transmit a message signal. The peak voltage of the modulating signal in order to have a modulation index of `75%` is

A

6V

B

7V

C

8V

D

9V

Text Solution

Verified by Experts

The correct Answer is:
D
Here `A_(c)=12V,mu=75%=0.75`
As `m u=(A_(m))/(A_(c))` or `A_(m)=muxxA_(c)=9V`
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NCERT FINGERTIPS-COMMUNITCATION SYSTEMS-Amplitude Modulation
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