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JEE Main 2022 · 26 Jul · Shift 2, Physics question 39

The maximum and minimum voltage of an amplitude modulated signal are 60 V and 20 V respectively. The percentage modulation index will be :

Choose one option
Answer and worked solution

Official answer: B

Modulation index 60−2060+20=0.5\frac{60-20}{60+20}=0.5, i.e. 50%.

(B)

Topics:Modulation
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