1. Exercise 1
In Fig. 1, run the analysis, and verify that the overall voltage gain Av=V0/Vs=-25.74, input resistance at VS = 15.44K, output resistance at Vo = 9.752K
Fig. 1 CE amplifier with emitter resistor

2. PSpice BJT Model
PSpice CE amplifier with emitter resistor

3. Circuit Description by PSpice

4. Question
What is the curve of Vo vs Vs when Vs value increases from 0mV to 1mV with 0.01mV.

5. Exercise 2
In Fig. 2, run the analysis, and verify that the overall voltage gain Av=V0/Vi=-1.939, output resistance at Vo = 1.95K
Fig.2 CS FET with Rs

6. PSpice FET Model

7. Circuit Description by PSpice
Common-Source FET with RS
VI 1 0 1mV
G mS
RD K
RL 2 0 2K RS
RG MEG
.OP
.OPT nopage
.TF V(2) VI
.END

8. Question
What is the curve of IL vs Vi when Vi value increases from 0mV to 1mV with 0.01mV?

9. Thinking…..
What is the simulation results when the Fig. 1 and Fig. 2 circuits are using real part for BJT and FET?