A carrier wave of amplitude 15 V is modulated by a sinusoidal base band signal of amplitude 3 V . The ratio of maximum amplitude to minimum amplitude in an amplitude modulated wave is

Step-by-step solution

The given data is A c = 15   V A m = 3   V Thus, the maximum amplitude and minimum amplitude is A m a x = A c + A m A m i n = A c - A m Hence, the ratio is A max A min = 15 + 3 15 - 3 = 18 12 = 3 2