The maximum amplitude of an AM wave is found to be 15 V while its minimum amplitude is found to be 3 V. What is the modulation index?
The maximum amplitude of an AM wave is found to be 15 V while its minimum amplitude is found to be 3 V. What is the modulation index?
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1 Answer
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This is a Short Answer Type Questions as classified in NCERT Exemplar
Maximum amplitude = Am+Ac =12 while minimum amplitude is Ac-Am=3
Using elimination method = 2Ac= 18
Ac=9 and Am= 6V
So modulating index m = 6/9= 2/3
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