For which of the following AM waves is the mo | vedclass

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

Question

(C) The modulation index $m_a$ for an $AM$ wave is given by the formula:$m_a = \frac{E_{max} - E_{min}}{E_{max} + E_{min}}$For the modulation index to

Vedclass · Accepted Answer

Vedclass · Answer

(C) The modulation index $m_a$ for an $AM$ wave is given by the formula:$m_a = \frac{E_{max} - E_{min}}{E_{max} + E_{min}}$For the modulation index to be $1$,we must have $E_{min} = 0$.Looking at the provided images:In image $169-$c213,the envelope of the wave touches the time axis,which means the minimum amplitude $E_{min} = 0 \ V$ and the maximum amplitude $E_{max} = 10 \ V$.Substituting these values into the formula:$m_a = \frac{10 - 0}{10 + 0} = \frac{10}{10} = 1$.Therefore,the wave in image $169-$c213 has a modulation index of $1$.

For which of the following $AM$ waves is the modulation index equal to $1$?

Similar Questions

What is the amplitude of the $LSB$ (Lower Side Band) frequency in the $AM$ wave shown in the figure (in $V$)?

In an amplitude modulation with modulation index $0.5$,the ratio of the amplitude of the carrier wave to that of the side band in the modulated wave is

The antenna current of an $AM$ transmitter is $8 \ A$ when only the carrier is sent,but it increases to $8.96 \ A$ when the carrier is modulated by a sine wave. The percentage of modulation is: (in $\%$)

$A$ transmitter supplies $9 \,kW$ to the aerial when unmodulated. The power radiated when modulated to $40\%$ is........$kW$

$A$ signal emitted by an antenna from a certain point can be received at another point on the Earth's surface in the form of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module