. The maximum peak to peak value of an AM wave is 40 volts. The peak to peak value of the modulating signal is 12 volts. Draw the waveform and find the percentage modulation? In this problem, if the load resistance is 60ohms, calculate the carrier power, total transmitted power

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Amplitude modulation

A radio signal can carry information in the form of sound or image for broadcasting or communication. For it to be sent to a greater distance, the signal must be changed or modulated in some way. One of the easiest way is to change the amplitude of the signal with variations of the video or the audio signal. This is called Amplitude Modulaton. In this modulation information of message is carried in amplitude of carrier signal.