A modulated signal` C_m(t)` has the form `C_m(t) = 30 sin 300pi t + 10 (cos 200pit – cos 400pi t)`. The carrier frequency `f_c` the modulating frequency (message frequency) `f_Omega` and the modulation index `mu` are respectively given by :

A modulated signal C_m(t) has the form C_m(t) = 30 sin 300pi t + 20 (cos 100pit) . The carrier frequency f_c the modulating frequency (message frequency) f_Omega and the modulation index mu are respectively given by :

The equation of an FM signal is e = 6 sin (10^(6) t + 4 sin 10^(3) t ) . Then, the modulating frequency is

The equation of an FM signal is e = 6 sin (10^(6) t + 4 sin 10^(3) t ) . Then, the modulating frequency is

If E_(c)=10 sin 10^(5) pit and E_(m)=10 sin 400 pi t are carrier and modulating signals respectively , the modulation index is

If a carrier wave c(t)=A sin omega_(c)t is amplitude modulated by a modulator signal m(t)=A sin omega_(m)t then the equation of modulated signal [C_(m)(t)] and its modulation index are respectively

A: The bandwidth of a modulated signal is 2f_(m) in amplitude modulation, where f_(m) is the frequency of the modulating signal. R: In case of amplitude modulation the frequency of a modulated signal is equal to the frequency of the carrier wave.

An audio signal v_m = 20 sin 2 pi (1500 t) amplitude modulates a carrier v_C = 80 sin 2pi (100,000t ) . The value of percent modulation is ___