In amplitude modulation:

  • A
    Amplitude remains constant but frequency changes.
  • B
    Both amplitude and frequency do not change.
  • C
    Both amplitude and frequency change.
  • D
    Amplitude of the carrier wave changes according to the information signal.

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Similar Questions

In $AM$ modulation,a signal is modulated on a carrier wave such that maximum and minimum amplitude are found to be $6\,V$ and $2\,V$ respectively. The modulation index is $\dots \%$.

The total power in an $AM$ wave is $1500 \ W$. What is the power transmitted by the carrier for $100\%$ modulation (in $W$)?

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