Note on Chapter 3 Homework

Problems 34 and 43 are asking the same question, which is "what is the fourier decomposition of a half-wave and full-wave rectifier?" This turns out to be the reason that cheapo light dimmers shouldn't be used to control, say, your ceiling fan motor. This problem is a bit tedious, so the reason I asked for it twice is that I believe packages in Maple and MatLab will do this decomposition for you.

Problem 12 can be found in many other books, if you need help, check out Giancoli, or some of the reference books in my office.

Problem 21 will be prelude to Chapter 4. You may want to look ahead if it seems a bit obscure.

I hope this problem set is easier than the last. If anyone finds it too difficult, please come and talk to me. (I assume no one will mind if it is too easy.) The homework is due on Wednesday, the 5th of Feb.