Give the expression for modulation index for AM and FM.

Give the expression for modulation index for AM and FM.
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1 Answer

Answer :

1.Modulation index for AM

ma=Vm / Vc

Where Vm is modulating voltage

Vc is the carrier voltage

2.Modulation index for FM

mf=δ /fm

where δ is the deviation

fm is the modulating frequency
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