The MOSFETs in the circuits of the Fig. 2 below have V = 0.4V, k_n = 0.4 mA/V2, A = 0, and L=0.4 m. (a) For the circuit in Fig. = 0.2mA and Vo = 0.6V. 2(a), find the values of W and Ro to operate the MOSFET at lo [4 points] (b) For the circuit in Fig. 2(b), find W, W2, and W3 to obtain V = 0.5V and V = 1.1V. [6 points] 4.7 M +1.8 V (a) Rp +1.8 V Q3 Q 2 0.1 mA (b) 0 V -O V