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What is amplitude modulation?...

What is amplitude modulation?

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In amplitude modulation

What is the band width in amplitude modulation ?

Which of the following is/are the limitations of amplitude modulation?

Draw a plot of the variation of amplitude versus omega for an amplitude modulated wave. Define modulation index. State its importance for effective amplitude modulation.

An audio signal of amplitude one half the carrier amplitude is used in an amplitude modulation. The modulation index is

A: The bandwidth of a modulated signal is 2f_(m) in amplitude modulation, where f_(m) is the frequency of the modulating signal. R: In case of amplitude modulation the frequency of a modulated signal is equal to the frequency of the carrier wave.

An audio signal of 0.1 V is used in amplitude modulation of a career wave of amplitude 0.3 V. The modulation index is

The maximum value of modulation index in case of amplitude modulation system is

An audio signal of amplitude 0.1 V is used is used in amplitude modulation of a carrier wave of amplitude 0.2 V. Calculate the modulation index.

(A) : In a communication system based on amplitude modulation the modulation index is kept less than 1 (R) : If modulation index is less than 1, there is minimum distortion of signal