ELEC 225, Fall 2009
Prof. Rich Kozick

Homework 7A Answers

Please be sure to clearly show your work in the solutions that you submit. Your approach is much more important than obtaining the correct numerical answer.

Problem 4.31: See back of textbook.

Problem 4.38: See back of textbook.

Problem 4.44: 600 W

Problem 4.45: (a) 800 W; (b) between 40% and 45%

Problem 4.47: See back of textbook.

Problem 4.51: 6, -16, 2, 6, 8 A

Problem 4.56: See back of textbook.

Problem 4.58: (a) 195 V

Problem 4.59: See back of textbook.

Problem 4.60: (a) 4 mA; (b) -660 mW

Problem 4.62: See back of textbook.