A sinusoidal voltage amplitude modulates another sinusoidal voltage of amplitude 2 kV resulting in two side bands of amplitude 200 V. Find the modulation index.

Answer

0.2

Explanation

Here, `A_c = 2kV = 2000 V, mu=?`
Amplitude of each side band `= (muA_c)/2`
`200 = (mu xx 2000)/2 mu = 0.2` .