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AIIMS 201826 May
Exam
AIIMS
Year
2018
Date
26 May
Subject
Physics
Chapter
Communication System

AIIMS 2018 · 26 May · Physics · Communication System

In an amplitude modulated signal the maximum amplitude is 15 volt...

In an amplitude modulated signal the maximum amplitude is 15 volt and minimum amplitude is 5 volt, then amplitude of modulating wave will be

Options

  1. A10 V10 \mathrm{~V}
  2. B5 V5 \mathrm{~V}
  3. C20 V20 \mathrm{~V}
  4. D30 V30 \mathrm{~V}

Correct answer

A. 10 V10 \mathrm{~V}

Step-by-step solution

Maximum amplitude =Am+AC=15=A_m+A_C=15 minimum amplitude =Am−AC=5=A_m-A_C=5 So 2Am=20;Am=10 V2 A_{\mathrm{m}}=20 ; A_m=10 \mathrm{~V}
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