Question

In the modulation index is 80%, then, power in each sideband is x% of that in the central carrier band. Here, ‘x’ is equal to,

(1) 0

(2) 16

(3) 20

(4) 32

Answer 1

(2) 16

Power carried by the central carrier wave = \(p_c=\frac{V^2_c}{2R}\)

Power carried by each sidebands = \(p_s=\frac{m^2V^2_C}{8R}\)

Therefore, at 80% modulation.