Question
Asked Dec 10, 2019
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During amplitude modulation, if the maximum and the minimum values of the envelope are 5V and 1 V respectively, then what will be the value of the modulation index? Will this value of modulation index give rise to over modulation?

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Expert Answer

Step 1

The modulation index of a signal is

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V -V т — V +V m in mar max = maximum envelop voltage V = minimum envelop voltage Here, V. m ax min

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Step 2

The modulation index i...

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5-1 т 3 5+1 4 = 0.667 ||

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