ELEC 226, Spring 2011
Prof. Rich Kozick

Homework 2 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.

Review Problem 1: Voltage amplitude between 30 and 40 V, phase between 20 and 30 degrees.

Review Problem 2: i₃(t) = 4.3346 cos(2000 t + 71.95^o) mA

Review Problem 3: Complex power is (120 + j 120) VA in (a) and -120 VA in (b).

Peak current is larger in (a) than in (b).

Problem 7.28: i(t) = 2.28 cos(10⁴ t + 15.30^o) A

Frequency response problem: We will discuss a similar problem in class on Tuesday, Feb. 8.