Question

what is amplitude modulation?

Answer 1

the modulation of a wave by varying its amplitude, used especially as a means of broadcasting an audio signal by combining it with a radio carrier wave.

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Answer 2

Amplitude modulation is a modulation technique used in electronic communications,
most commonly for transmitting information via a radio carrier wave.
in amplitude modulation,the amplitide of the carrier wave is varied in proportion to that of the message signal being transmitted.
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