Download Aptitude Crack
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Communication Systems

Q1:

In amplitude modulation

A the amplitude of carrier varies in accordance with the amplitude of the modulating signal.

B the modulating frequency lies in the audio range

C the amplitude of the carrier remains constant

D the amplitude of the carrier varies in accordance with the frequency of the modulating signal.

ANS:B - the modulating frequency lies in the audio range

Yes, I too agree, A is the right answer.



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