(A) $\text{AM}$ system
(B) SSB system
(C) PCM ( $n$ bit) system
- $2 B$ (Band width of the modulating signal)
- $2 \mathrm{~B}$
- Between $\text{B}$ and $\text{2B}$
- $2 n \mathrm{~B}$
- $n \mathrm{~B}$
\[
\mathrm{V}_{0}(s)=\frac{\mathrm{A}}{s^{2}+1} \operatorname{coth}(\alpha s)
\]
where $\alpha$ is a constant. Determine the value of $\alpha$