Chapter 3 problems

3.9

Part A

• Using KVL: $4=1.5I_{A}+V_{A}$
• Thus the two points for the load line are $V_{A}=4$ and $I_{A}=2.66$
• Overlay the above two points with the diode characteristics to find the answer.

Part B

• Is there a physical part that mimics the device characteristics of X?
• Using KCL: $-.005+V_{b}/200+I_{b}=0$
• Thus: $I_{b}=.005$ and $V_{b}=1$, however this is off the chart. Is this correct?

Part C

• Using KCL: $-V_{C}/500+I_{C}+V_{C}/500=0$
• I believe there is a problem with my equation.