$(16\%)$ For the common$-$source circuit shown in Figure $4,$ assume the transistor parameters are $V_{TN}=1V,K_n=0\mathrm{.}2m\frac{A}{V^2},$ and $=0.$ The circuit parameters are $V_{DD}=10V$ and $R_D=20k.($a$)$ Plot the transistor characteristic $(i_D$ versus $v_{DS})$ and load line, please mark the status of transistor $($such as cut$-$off, saturation$)$ and transition point $(6\%).($b$)$ Determine the transition point parameters $(I_{Dt})(5\%).($c$)$ If $R_1=150k$ and $R_2=100k,$ determine $I_D(5\%).$

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Figure $4(16\%)$ For the common$-$source circuit shown in Figure $4,$ assume the transistor parameters are $V_{TN}=1V,K_n=0\mathrm{.}2m\frac{A}{V^2},$ and $=0.$ The circuit parameters are $V_{DD}=10V$ and $R_D=20k.($a$)$ Plot the transistor characteristic $(i_D$ versus $v_{DS})$ and load line, please mark the status of transistor $($such as cut$-$off, saturation$)$ and transition point $(6\%).($b$)$ Determine the transition point parameters $(I_{Dt})(5\%).($c$)$ If $R_1=150k$ and $R_2=100k,$ determine $I_D(5\%).$

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Figure $4$