ELEC 225, Fall 2008
Prof. Rich Kozick

Homework 10


Date Assigned: Wednesday, November 12, 2008
Date Due: Wednesday, November 19, 2008

  1. Reading: In the Nilsson/Riedel text, please continue to study Chapter 9 on sinusoids, phasors, impedance, and circuit analysis. Begin with Sections 9.1-9.6, but eventually we will study the entire chapter. Also, review Appendix B on complex numbers.

    Chapter 9 provides a nice review of everything we've done so far in this course. We will be applying all of the circuit analysis methods to find the sinusoidal steady-state response. The new twist is that voltages and currents will be complex-valued phasors, while resistors, capacitors, and inductors will be modeled by complex-valued impedances.

  2. Please solve the following problems and submit solutions on November 19:
    Chapter 9: 2, 5, 6, 7, 11, 12, 14.
    Hint for 9.6: cos2 x = (1 + cos (2x)) / 2

    Note: There is an error in the answers in the back of the textbook to Problem 9.5, parts (h). The answer in the textbook is correct if the question is changed as follows:
    9.5(h): Change "to the right" to "to the left"

    ** Modification: Problems 9.11, 9.12, and 9.14 will be part of Homework 11, so you can delete them from this assignment. **

Thank you.