ELEC 226, Spring 2011
Prof. Rich Kozick

Homework 1 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 8.21:

a) V_S,rms = 407 L 31.8° Vrms

b) Z₁ = 1.08 + j0.81 kohm; Z₂ = 1.57 − j1.60 kohm; Z₃ = 2.02 − j2.69 kohm

Problem 8.23:

a) pf = 0.84 [lagging/leading not given here, but you should specify]

b) C is on the order of 1 micro farad

Problem 8.26: Maximum power is 12.5 W.

Problem 8.27: Maximum power is 6.78 W.