ELEC 225, Fall 2009
Prof. Rich Kozick

Homework 4


Date Assigned: Friday, September 18, 2009
Date Due: Wednesday, September 23, 2009

  1. Exam 1 will be on Friday, September 25 (as listed on the syllabus), and then we will not have class on Monday, September 28.

    The exam will be closed-book and closed-notes, and will cover the topics from homework assignments 1 through 4 and lab 2 (not PSpice). Please bring your calculator to the exam. The specific topics include the following.

  2. Lab schedule: No lab on Thursday, Sept. 24, then all students attend lab on Thursday, Oct. 1.

  3. Reading:

  4. Please solve the following problems, and submit solutions on September 23.
    Chapter 3: Problem 3.53.

    Equations (3.47), (3.48), (3.49) on page 74: Show how these equations are derived from Figure 3.31.
    Hint: Short-circuit each pair of terminals (a-b, b-c, a-c), then equate conductances (G) in the Delta and Y circuits. Also, see Problem 3.62.

    Chapter 4: Problems 63 and 69 (Thevenin model).

Thank you.