A sinusoidal carrier wave of amplitude 40 V is amplitude modulated by a sinusoidal signal voltage. What is the amplitude of each side band if the modulation index is 25%.

When a sinusoidal carrier wave of voltage amplitude 3 kV is amplitude modulated by a sinusoidal signal voltage, two side bands each of amplitude 600 V are produced. What is the modulation index ?

A sinusoidal carrier voltage of 120 V is amplitude modulated by a sinusoidal voltage of frequency 10KHz. What is the modulation index if the maximum modulated carrier amplitude is 150 V ?

A sinusoidal carrier wave of amplitude 80 V and frequency 600 KHz is amplitude modulated by a sinusoid voltage of frequency 30 KHz. What is the ratio of upper and lower side band frequencies ?

A sinusoidal carrier wave of frequency 1 MHz and amplitude 100 V is amplitude modulated by sinusoidal voltage of frequency 4 kHz producing 50% modulation. The frequencies of lower and upper side band terms are respectively,

A sinusoidal carrier wave of frequencu 1 MHz and amplitude 100 V is amplitude modulated by sinusoidal voltage of frequency 4 kHz producting 50% modulation. The frequencies of lower and upper side band terms are respectively,

A carrier wave with amplitude of 250 V is amplitude modulated by a sinusoidal base band signal of amplitude 150 V. The ratio of minimum amplitude to maximum amplitude for the amplitude modulated wave is 50 : x, then value of x is _________ .

A carrier wave with amplitude of 250 V is amplitude modulated by a sinusoidal base band signal of amplitude 150 V. The ratio of minimum amplitude to maximum amplitude for the amplitude modulated wave is 50 : x, then value of x is _________ .

Why is the amplitude of modulating signal kept less than the amplitude of carrier wave ?

A sinusoidal carrier voltage of frequency 1200 kHz is amplitude modulated by a sinusoidal voltage of frequnecy 20 kHz. The maximum and minimum modulated carrier amplitudes of 100 V and 90 V are produced. Calculate the frequency of lower and upper side bands, unmodulated carrier amplitude, modulation index and amplitude of each side band.