Question 3.10: Use PSpice to find the node voltages in the circuit of Fig. ...
Use PSpice to find the node voltages in the circuit of Fig. 3.31.
The first step is to draw the given circuit using Schematics. If one follows the instructions given in Appendix sections D.2 and D.3, the schematic in Fig. 3.32 is produced. Since this is a dc analysis, we use voltage source VDC and current source IDC. The pseudocomponent VIEWPOINTS are added to display the required node voltages. Once the circuit is drawn and saved as exam310.sch, we run PSpice by selecting Analysis/Simulate.
The circuit is simulated and the results are displayed on VIEWPOINTS and also saved in output file exam310.out. The output file includes the following:
\begin{array}{clcccc}\text { NODE } & \text { VOLTAGE } & \text { NODE } & \text { VOLTAGE } & \text { NODE } & \text { VOLTAGE } \\(1) & 120.0000 & (2) & 81.2900 & \text { (3) } & 89.0320\end{array}
indicating that V_{1}=120 V , V_{2}=81.29 V , V_{3}=89.032 V.
