Suppose that the modulating signal is `m(t)=2cos(2pif_(m)t)` and the carrier signal is `x_(c)(t)=A_(c)cos(2pif_(c)t)` which one of the following is a conventional `AM` signal without over modulation

In amplitude modulation, the message signal V_(m)(t)=10sin(2pixx10^(5)t) volts and Carrier signal V_(C )(t)=20sin(2pixx10^(7)t) volts The modulated signal now contains the message signal with lower side band and upper side band frequency, therefore the bandwidth of modulated signal is alpha KHz. The value of alpha is

Equation of messages signal m = 2 sin omega_(m)(t) and carrier signal c = 4 sin omega_(C)(t) . The equation of modulating signal will be

A message signal m(t)=4cos2000pit modulates the carrier C(t)=cos2pif_(c)t where f_(c)=1MHz to produce an AM signal. For demodulation using envelope detector the time constant RC should satisfy

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

A modulating signal is a square wave as shown in figure. The carrier wave is given by c(t)=2 sin(8pit)"volt" . The modulation index is

The carrier wave of a signal is given by C(t) = 3sin (8pit) volt. The modulating signal is a square wave as shown. Find its modulation index.