AP EAMCET · PHYSICS · Communication System
In amplitude modulation, the amplitude of the carrier ware is 10 V and the amplitude of one of the side bands is 2 V . Then the modulation index is
- A \(0.8\)
- B \(0.6\)
- C \(0.7\)
- D \(0.5\)
Answer & Solution
Correct Answer
(A) \(0.8\)
Step-by-step Solution
Detailed explanation
In amplitude modulation (AM) wave, \(\begin{aligned} & A_c=10 V, A_{\min }=2 V \\ & \Rightarrow A_c-A_s=2 \Rightarrow A_{s^{\prime}}=10-2=8 \mathrm{~V} \\ & \therefore \quad A_{\max }=A_s+A c=8+10=18 \mathrm{~V} \end{aligned}\) \(\therefore \quad\) Modulation index,…
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