Which among the following statements is true about amplitude modulation?
Amplitude modulation is ____________________________________.

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Change in the amplitude of carrier wave according to the modulating signal

Change in frequency of the carrier wave according to modulating signal

Change in the amplitude of the modulating signal according to carrier signal

Change in the amplitude of the carrier signal according to modulating signal frequency

answer is A.

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Detailed Solution

In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a separate signal called the modulation signal that typically contains information to be transmitted. Or simply we can say that the superposition of modulating signal onto a carrier wave is known as modulation.

Amplitude modulation is the change in amplitude of the carrier wave according to modulating signal.

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