3. (15%) Consider the voltage amplifier of Fig. 3(a) with Voo = 2 V, Rp = 20 kQ, and with a MOSFET specified to have Vt = 0.5 V,(W/L) = 5 mA/V2, and λ = 0 . Calculate the of the voltage transfer characteristic as shown in Fig. 3(b). (5%*3)