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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

The correct Answer is:
`0.33`
As is clear from diagram as given below :
`2E_("max") = 16mV `
`E_(max) =16/2 = 8mV`
`2E_(min) = 8 mV`
`E_(min) = 8/2 = 4mV`
`mu_a=(E_("max")-E_(min))/(E_("max")+E_(min))=(8-4)/(8+4)=1/3=0.33`
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