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1.Define modulation index.

2.What is the preferable value of modulation index in AM system, high value or moderate value?

Asked by Topperlearning User 9th July 2014, 9:42 AM
Answered by Expert
Answer:

1. Modulation index(μ) of an AM wave is the ratio of amplitude of modulating signal(A m ) and amplitude of carrier wave(A C).

 



       


2. Modulation index is kept less than 1, that is Am

A moderate value of modulation index is desirable so as to avoid distortion in the wave form.  

Answered by Expert 9th July 2014, 11:42 AM
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