Question

If the maximum amplitude of an amoplitude modulated wave is 25 V and the minimum amplitude is 5V, the modulation index is

Answer 1

Answer:

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Answer}}}}}}$

Given : Modulation index m=2/3

Using m=Am/Ac

∴ 2/3=Am/Ac⟹AC=2/3Am

Maximum amplitude =10 V

∴ AC+Am=10

OR 2/3Am+Am=10 ⟹Am=4 V

∴ AC=3/2×4=6 V

Minimum amplitude =Ac−Am=6−4=2 V

Answer ⟹ $\huge{\fbox{\mathfrak{\red{2}}}}$

Answer 2

Explanation:

If the maximum amplitude of an amoplitude modulated wave is 25 V and the minimum amplitude is 5V, the modulation index is

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