(B) Maximum amplitude of $AM$ wave, $A_{\max} = 20 \,V$. Minimum amplitude of $AM$ wave, $A_{\min} = 4 \,V$. The modulation index $\mu$ is given by th

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(B) Maximum amplitude of $AM$ wave, $A_{\max} = 20 \,V$. Minimum amplitude of $AM$ wave, $A_{\min} = 4 \,V$. The modulation index $\mu$ is given by the formula: $\mu = \frac{A_{\max} - A_{\min}}{A_{\max} + A_{\min}}$ Substituting the values: $\mu = \frac{20 - 4}{20 + 4} = \frac{16}{24} = \frac{2}{3} \approx 0.67$.

Class 12 Physics Communication Communication

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The maximum amplitude of an $AM$ wave is found to be $20 \,V$ while its minimum amplitude is $4 \,V$. The modulation index is

AP EAMCET 2022 All AP EAMCET

A
$0.33$
B
$0.67$
C
$0.44$
D
$0.63$

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The maximum amplitude of an $AM$ wave is found to be $20 \,V$ while its minimum amplitude is $4 \,V$. The modulation index is

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