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The maximum peak to peak voltage of an A...

The maximum peak to peak voltage of an AM wave is 16 m V and the minimum peak to peak voltage is 8 m V. What is the modulation index ?

Text Solution

Verified by Experts

As is clear from figure
`2 E_(max) = 16 m V`
`E_max = 16/2 = 8 m V`
`2 E_(min) = 8 m V`
`mu_(a) = (E_max - E_min)/(E_(max) + E_(min)) = (8 - 4)/(8 +4) = 1/3 = 0.33`
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