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AP EAMCET202420 May 2024Evening ShiftPhysicsCommunication SystemActual

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

Options

  1. A0.8
  2. B0.6
  3. C0.7
  4. D0.5

Correct answer

A. 0.8

Step-by-step solution

In amplitude modulation (AM) wave, aligned & A_c=10 V, A_ =2 V & A_c-A_s=2 A_ s^ =10-2=8 ~V & A_ =A_s+A c=8+10=18 ~V aligned Modulation index, = A _ - A _ A _ + A _ = 18-2 18+2 =0.8

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