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A modulating signal is a square wave as ...

A modulating signal is a square wave as shown in the following figure.

While the carrier wave is given by, e = 4 sin (87`pi`t) volt. What is the modulation index ?

A

0.15

B

0.25

C

0.35

D

0.5

Text Solution

Verified by Experts

The correct Answer is:
B
The amplitude of the modulating signal = 1V
The amplitude (or peak voltage ) of the carrier wave = 4 V
Thus `A_m`= 1V and `A_C` = 4 V
`therefore mu=A_m/A_C=1/4=0.25`
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