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

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

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:

Similar Questions

The maximum distance up to which $TV$ transmission from a $TV$ tower of height $h$ can be received is proportional to

In the process of space communication,the use of a modem is necessary. In which one of the following modes does a modem act as a modulator and a demodulator respectively?

The height of a $T.V.$ tower is $100 \ m$. What is the population covered by the $T.V.$ broadcast if the average population density around the tower is $1000 \ \text{people}/km^2$?

The bandwidth of an optical fiber is approximately ........

Which types of communication modes are used for the propagation of radio waves from one place to another?

Vedclass Test Series

Exam Paper Generator

Online Exam Module