ELEC 225, Fall 2009
Prof. Rich Kozick

Homework 8 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 5.1(d): v_o =-4 V

Problem 5.2: In (a) through (e), two cases are in saturation. In (f), the range for v_a is 2.8125 V to 7.3125 V.

Problem 5.3: i_o = -3.1 mA

Problem 5.5: (a) v_a = -400 mV, (b) v_o = -6.8 V , (c) i_a = 20 micro A , (d) i_o = 111.67 micro A.

Problem 5.12: (b) v_o = –6 V. (c) –7.5 to –1.5 V.

Problem 5.13: (a) v_o = –6 V. (b) 8.4 to 13.2 V.

Problem 5.15: Should be straightforward (there are no tricks in this).

Problem 5.20: (b) v_o = 4.44 V. (c) i_a =-4.86 uA, i_b = 4.86 uA. (d) 20/9 and 25/9.