Q.2. For the cascade amplifier shown below, the Rsource = 100 kOhms, Ri1 = 2 MOhms, Ro1 = 20 kOhms, Ri2 = 200 kOhms, Ro2 = 1 kOhms, Ri3 = 20 kOhms, Ro3 = 5 Ohms, Rload = 100 Ohms. Open circuit gain Avo1 = 10, Avo2 = 100, Avo3 = 1.2.1 Let Vs be 2 mV, Find Vi1, Vi2, Vi3, and VL. (20 pts) 2.2 Please calculate the overall voltage gain of VL/Vs. (10 pts)