# Homework #9. First-Order Circuits

• Read Chapter 7 of Alexander & Sadiku's Fundamentals of Circuit Analysis (6th edition).
• Make sure you understand the answers to Review Questions 7.1 to 7.3, and 7.5 to to 7.10 on pages 298 to 299. Review Question 7.4 is poorly worded, so don't worry about it. Also, note that several of these questions have five possible answers, the fifth of which should be labeled (e). Quiz questions will be similar to these Review Questions or Review Questions from earlier chapters.
• Turn in solutions to the following Problems on pages 299 to 310:
• All parts of Problems 7.1*, 7.3, 7.6, 7.11, 7.14, 7.24**, 7.27
• Part (a) of 7.39
• Part (a) of 7.40
• All parts of Problem 7.53 ***
• *The book's answer for part (a) of Problem 7.1 should also give R's value, which is 7 kΩ.
• **For each part of Problem 7.24, sketch the waveform as part of your answer. Hint for this problem: use step functions for parts (a), (b), and (d), and use ramp functions for part (c).
• ***The book's answer for Problem 7.53 uses step functions, but these are not necessary. For part (a) you could just write 5et/2 A instead of 5et/2u(t) A. For part (b) you could just write 6e−2t/3 A instead of 6e2t/3u(t) A.