Why is the amplitude of modulating signal kept less than the amplitude of carrier wave ?

The amplitude of the modulating wave is 2//5 th of the amplitude of the carrier wave. The percentage modulation

Calculate the modulation index if the amplitude of the audio signal is half of the amplitude of the carrier wave.

A: If the amplitude of a message signal is half of the amplitude of the carrier wave, then the index of modulation is 50%. R: In amplitude modulation the amplitude of the carrier wave varies in accordance with the signal voltage of the message signal.

Write an expression for amplitude modulated carrier wave .

Both amplitude modulation (AM) and frequency modulation (FM) are used for radio broadcasting. The amplitude of the high frequency carrier wave is varied or modulated in accordance with the variations in the amplitude of the audio signals that are to be transmitted, in te process of amplitude modulation in frequency modulation te amplitude of the carrier remains constant but its frequency is varied inn accordance withh the audio signal. Reception with AM signals is in general is affected by interference of various kinds ad elaborated equipment is required for FM broadcast. In india the radio signals are boarcast using-