CBSE Class 12-science Answered
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 | 09 Jul, 2014, 09:42: AM
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<Ac.
A moderate value of modulation index is desirable so as to avoid distortion in the wave form.
Answered by | 09 Jul, 2014, 11:42: AM
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