For the common-source (CS) amplifier circuit shown here, the dc bias circuit is given below.
(a) Using the dc circuit shown above, determine the values of \( I_{D} \) and \( g_{m} \). This NMOS transistor has \( V_{t n}=1.4 \mathrm{~V} \) and \( k_{n}=200 \mathrm{~mA} / \mathrm{V}^{2} \)