Definition of Frequency modulation & Frequency deviation in FM
Q. In Frequency Modulation -- Published on 14 Oct 15a. Amplitude of the carrier remains same
b. Frequency of the carrier varies in accordance with the modulating signal
c. The number of side bands are infinite
d. All of the above
ANSWER: All of the above
In Frequency Modulation amplitude of the carrier remains same where as frequency of the carrier varies in accordance with the modulating signal. The variation of the instantaneous carrier frequency is proportional to the modulating signal. The number of side bands are infinite in FM signal.