For a particular IC fabrication process, the transconductance parameter is $50\frac{A}{V^2},$ and threshold voltage is $1$ V $.$ In an application, $V_{GS}=V_{DS}=V_{\text{s}\text{u}\text{p}\text{p}\text{l}\text{y}}=5V,$ a drain current of $0\mathrm{.}8$ mA is required for a device of minimum length $2m.$ What value of channel width must the design use? $[5][$CO$01][$BTL$3]$