Question

If an amplitude modulation (AM) has an amplitude modulating signal of 0.5 V and carrier amplitude of 1.3 V, what is the modulation index?

Answer 1

The modulation index in the amplitude modulation will be 0.384

Step-by-step explanation:

We have given amplitude of adulating signal
`A_m=0.5volt`

Amplitude of carrier signal
`A_C=1.3volt`

We have to find modulation index

Modulation index is the ratio of amplitude of modulating signal and amplitude of carrier signal

So modulation index
`m=(A_m)/(A_c)=(0.5)/(1.3)=0.384`

So the modulation index in the amplitude modulation will be 0.384