Question

If A maximum is 10 volt and A minimum is 5 volt then what will be modulation index

Answer 1

the waveform of amplitude modulated wave. Let the amplitude of the normal carrier wave be EC. Then, it is clear from Fig. 16.4 that : EC = 2 V V max min + If ES is the signal amplitude, then it is clear from



Ec=(Vmax+Vmin)/2

If Vs is the signal amplitude then,

Es=(Vmax-Vmin)/2

Ec=Es

(Vmax+Vmin)/2=(Vmax-Vmin)/2

m=(Vmax-Vmin)/(Vmax+Vmin)