A modulating signal is a square wave,as shown | vedclass

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Question

(D) The modulation index $\mu$ is defined as the ratio of the amplitude of the modulating signal $(A_m)$ to the amplitude of the carrier wave $(A_c)$.

Vedclass · Accepted Answer

$0.5$

Vedclass · Answer

(D) The modulation index $\mu$ is defined as the ratio of the amplitude of the modulating signal $(A_m)$ to the amplitude of the carrier wave $(A_c)$.From the given figure,the amplitude of the modulating square wave signal is $A_m = 1 	ext{ V}$.The carrier wave is given by $c(t) = 2 \sin(8 \pi t)$,which is in the form $c(t) = A_c \sin(\omega_c t)$. Thus,the amplitude of the carrier wave is $A_c = 2 	ext{ V}$.The modulation index is calculated as:$\mu = \frac{A_m}{A_c} = \frac{1}{2} = 0.5$.

$A$ modulating signal is a square wave,as shown in the figure. If the carrier wave is given as $c(t) = 2 \sin(8 \pi t)$ volts,the modulation index is:

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