Draw a plot ofthe variation of amplitude versusomega for an amplitudemodulated wave.Define modulationindex. State its importance for effective amplitude modulation.

Draw a plot ofthe variation of amplitude versusomega for an amplitudem

1.	Draw a plot ofthe variation of amplitude versusomega for an amplitudemodulated wave.Define modulationindex. State its importance for effective amplitude modulation.
Answer» Solution :A PLOT of amplitude versus `omega` for an amplitude MODULATED wave : Modulation INDEX : Modulation index is the ratio of amplitude of modulating voltage `(A_(m))` andamplitude of carrier voltage `(A_(c))`. Modulation index `MU` is `mu=(A_(m))/(A_(c))`. Importance : The amplitude modulation index `(mu)` determines the quality of the transmitted index. When modulation index is small, variation in carrier amplitude will be small.

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Draw a plot ofthe variation of amplitude versusomega for an amplitudemodulated wave.Define modulationindex. State its importance for effective amplitude modulation.

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