Question

For an amplitude modulated wave, the maximum amplitude is found to be 10V while the minimum amplitude is found to be 2V. Determine the modulation index μ. What would be the value of μ if the minimum amplitude is zero volt?

Answer 1

Answer:

For an amplitude modulated wave , the maximum amplitude is found to be 10 v while the minimum amplitude is found to be 2v2v. Determine the modulation index μμ .

3223122132231221

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A)

Solution :

Amax=Ac+Am=10vAmax=Ac+Am=10v

Amin=Ac−Am=2vAmin=Ac−Am=2v

=> 2Ac=12v2Ac=12v

or Ac=6vAc=6v

and Am=4VAm=4V

μ=AmAcμ=AmAc

=46=46

=23