Vm = 20sin[100πt+π/4], Vc = 80sin[104t+π/6], For amplitude modulation wave find out percentage modulation index.

Question

$V_m=20\sin [100\pi t +{\pi\over4}]$

$V_c=80\sin [10^4t+{\pi\over6}]$

For amplitude modulation wave find out percentage modulation index.

Numerical Value Type

Comments

Communication systems, Amplitude modulation

Answer 1

Ans. 25

Sol. $m\% = {A_m\over A_c}\times100={20\over80}×100=25\%$