Q2. a) The NMOS transistor in the source-follower circuit of Figure. 2 (a) has gm = 5 mA/V and a large ro. Find the open-circuit voltage gain and the output resistance. b) The NMOS transistor in the common-gate amplifier of Figure. 2 (b) has gm = 5 mA/V and a large ro. Find the input resistance and the voltage gain. c) If the output of the source follower in (a) is connected to the input of the common- gate amplifier in (b), use the results of (a) and (b) to obtain the overall voltage gain. 0- 10 kn -0% 5 kf2 to 10 kn Figure. 2. 2k0