Question

If $V_c$ is amplitude of carrier wave in AM transmitter, where modulation factor is $m$, then amplitude of side bands can be

• A. $\frac{V_c}{2m}$
• B. $\frac{m{V}_c}{2}$
• C. $m{V}_c$
• D. $\frac{V_c}{2}$

Answer 1

The correct option is B $\frac{m{V}_c}{2}$

Modulation factor is given as:

Modulation factor $\left(m\right)$ = Amplitude of the modulated wave/Amplitude of the carrier wave = $V_m/V_c$

$m=V_m/V_c$

Therefore, $V_m=m{V}_c$

So, amplitude of each side band = $V_m/2=m{V}_c/2$.