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An amplitude modulated wave is as shown ...

An amplitude modulated wave is as shown in the figure. What is the percentage of modulation ?

A

0.5

B

0.6667

C

0.45

D

0.556

Text Solution

Verified by Experts

The correct Answer is:
B
From the figure, we find that Maximum voltage =`100/2`=50 V
Minimum voltage =`20/2`=10 V
Percentage modulation `mu=(V_"max"-V_"min")/(V_"max"+V_"min")xx100=((50-10)/(50+10))xx100`
`=40/60xx100=66.67%`
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