Modules || Argument || Amplitude

Argument | Amplitude | Polar Form

Illustration on Modules OF Complex Number|| Triangular Inequality || Argument OF Complex Number

Illustration on Modules OF Complex Number|| Triangular Inequality|| Argument OF Complex Number

A carrier wave of amplitude A is used to modulate (amplitude) the signal.Modulated signal amplitude swings from 0.1 A to 1.9A,calculate modulation index.

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.

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 ?

Assertion: Amplitude modulation shows more interference than frequency modulation with noise. Reason: Interference is function of amplitude of modulation wave with carrier wave.