Figure 164 $k_{n}^{\prime}(W / L)_{n}=k_{p}^{\prime}(W / L)_{p}=10 \mathrm{~mA} / \mathrm{V}^{2},\left|V_{t}\right|=$ $1 \mathrm{~V}$

Essay

Figure 16.4.1
The transistors in the CMOS inverter in Fig. 16.4.1 have $k_{n}^{\prime}(W / L)_{n}=k_{p}^{\prime}(W / L)_{p}=10 \mathrm{~mA} / \mathrm{V}^{2},\left|V_{t}\right|=$ $1 \mathrm{~V}$ , and $\lambda=0$ .
(a) What is the value of the gate threshold?
(b) For $v_{I}=0 \mathrm{~V}$ , what is the resistance between the output terminal and the $V_{D D}$ supply? If a resistance $R_{L}=1 \mathrm{k} \Omega$ is connected between the output terminal and ground, what will $v_{O}$ be?