Amplitude modulation is

Amplitude modulation is

a.) Change in amplitude of the carrier according to modulating signal
b.) Change in frequency of the carrier according to modulating signal
c.) Change in amplitude of the modulating signal according to carrier signal
d.)Change in amplitude of the carrier according to modulating signal frequency

Correct Answer: a.) Change in amplitude of the carrier according to modulating signal

Explanation:

Amplitude modulation is defined as change in the amplitude of the high frequency carrier wave in accordance with the instantaneous value of the modulating signal.