Questions
A carrier is modulated simultaneously by 3 sine waves of modulation indices 0.3, 0.4 and 0.45 respectively. The net modulation index is
a
1.15
b
0.67
c
0.57
d
0.84
detailed solution
Correct option is B
m=m12+m22+m32=(0.3)2+(0.4)2+(0.45)2 = =0.09+0.16+0.2025 ==0.4525 = 0.67Talk to our academic expert!
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