Questions
A 100 V carrier wave is made to vary between 160 V and 40 V by a modulating signal. What is the modulation index?
a
0.4
b
0.5
c
0.6
d
0.3
detailed solution
Correct option is C
Modulation index is given by μ=Amax−AminAmax+Amin or Vmax−VminVmax+Vmin ⇒μ = =160−40160+40=120200=0.6Talk to our academic expert!
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