ELEC 225, Fall 2009
Prof. Rich Kozick

Homework 9 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 5.43: (a) 30.98. (b) v_n = 999.5 mV, v_p = 999.87 mV. (c) 367.94 uA.
(d) 836.22 pA. (e) 31 V/V, 1 V, 1V, 0V, 0 A.

Problem 5.46: (a) –6A / (7+A). (b) –2.866 V. (c) –3 V. (d) Correct answer is between 300 and 400.

Parts of the answers will be given so you can check if they are included in your solution.

Problem 6.1: (a) 16t and (0.8 – 16t). (b) 6V and -6V.

Problem 6.3: 5 – 2.5 exp(-3t) (A)

Problem 6.14: 60t² and -60(2-t) ² (micro A)

Problem 6.17: The answers include:
(a) and (b): 1.25 microC, 5V. (c) 1 microC, 4V, 2 microJ.