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The frequencies of two side bands in an ...

The frequencies of two side bands in an AM weve are 640 kHz and 660 kHz respectively. Find the frequencies of carrier and modulating signal. What is the bandwidth required for amplitude modulation ?

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To solve the problem step by step, we will find the frequencies of the carrier wave and the modulating signal, and then calculate the bandwidth required for amplitude modulation. ### Step 1: Define the variables Let: - \( f_c \) = frequency of the carrier wave - \( f_m \) = frequency of the modulating signal ### Step 2: Set up the equations based on the given sideband frequencies ...
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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-

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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SECTION-B
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