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Choose the correct statement for amplitude modulation

Options

  1. AAmplitude of modulating signal is varied in accordance with the information signal.
  2. BAmplitude of modulated signal is varied in accordance with the information signal.
  3. CAmplitude of carrier signal is varied in accordance with the information signal.
  4. DAmplitude of modulated signal is varied in accordance with the modulating signal.

Correct answer

C. Amplitude of carrier signal is varied in accordance with the information signal.

Step-by-step solution

Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to that of the information signal.

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