In an amplitude modulation,a modulating signa | vedclass

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

Question

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

Vedclass · Accepted Answer

$2:1$

Vedclass · Answer

(C) The modulation index $\mu$ is defined as the ratio of the amplitude of the modulating signal $(A_m)$ to the amplitude of the carrier signal $(A_c)$: $\mu = \frac{A_m}{A_c}$.In the first case,the modulating signal amplitude is $A_m = X$ and the carrier signal amplitude is $A_c = Y$. Thus,$\mu_1 = \frac{X}{Y}$.In the second case,the modulating signal amplitude is $A_m = X$ and the carrier signal amplitude is $A_c = 2Y$. Thus,$\mu_2 = \frac{X}{2Y}$.The ratio of the modulation indices is $\frac{\mu_1}{\mu_2} = \frac{X/Y}{X/2Y} = \frac{2}{1}$.Therefore,the ratio is $2:1$.

Similar Questions

While tuning in a certain broadcast station with a receiver,we are actually

If a $TV$ transmission antenna covers a radius of $128 \, km$,what should be the height of the antenna in $m$?

In $AM$ modulation,a signal is modulated on a carrier wave such that maximum and minimum amplitude are found to be $6\,V$ and $2\,V$ respectively. The modulation index is $\dots \%$.

The advantage of an optical fibre is:

$A$ carrier wave of amplitude $15\,V$ is modulated by a sinusoidal baseband signal of amplitude $3\,V$. The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module