A carrier wave of peak voltage \( 10 \mathrm{~V} \) is used to tran...

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A carrier wave of peak voltage \( 10 \mathrm{~V} \) is used to transmit a message signal. What would be the peak voltage of the modulating signal in order to have a modulation index of \( 50 \% \) ?
- (a) \( 5 \mathrm{~V} \)
(b) \( 3 \mathrm{~V} \)
(c) \( 9 \mathrm{~V} \)
(d) \( 10 \mathrm{~V} \)
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