An amplitude modulated wave is represented by :
$C_m\left(t\right)=10(1+0.2\cos 12560t)\sin (111\times {10}^{4}t)$ volts. The modulating frequency in kHz will be

Q. An amplitude modulated wave is represented by the equation $V_m=5(1+0.6\cos 6280t)\sin (211\times {10}^{4}t)\text{V}$. The minimum and maximum amplitudes of the amplitude modulated wave are, respectively :

Q. A sinusoidal carrier voltage of frequency $10MHz$ and amplitude $200volts$ is amplitude modulated by a sinusoidal voltage of frequency $10kHz$ producing $40\%$ modulation. Calculate the frequency of upper and lower sidebands.

Q. (a) How is amplitude modulation achieved?
(b) The frequencies of two side bands in an AM wave are $640$ kHz and $660$ kHz respectively. Find the frequencies of carrier and modulating signal. What is the bandwidth required for amplitude modulation?

Q. (a) How is amplitude modulation achieved ?
(b) The frequencies of two side bands in an AM wave are 640 kHz and 660 kHz respectively. Find the frequencies of carrier and modulating signal. What is the bandwidth required for amplitude modulation ?

Q. (a) How is amplitude modulation achieved ?
(b) The frequencies of two side bands in an AM wave are 640 kHz and 660 kHz respectively. Find the frequencies of carrier and modulating signal. What is the bandwidth required for amplitude modulation ?