CHAPTER 21: Electric Charge

Robert A. Millikan (1868 - 1953)

How did Millikan determine electron's charge?

"Electron charge" is the smallest of all!

Objective To introduce the idea of electric charge and describe interaction between charges.
Concepts Electric charge and its properties, Coulomb's law, Conductor, Insulator.
Activities (1) Go to: www.wiley.com/college/hrw, click on "student" link and explore interactive learning ware on Ch. 21.

(2) Do sample problem 21.2 using a computer.

Quick Quiz (1) What is meant by "charge"?

(2) Is Coulomb's law valid for all charged objects?

Further Questions  (1) Answer Checkpoints 2, 3.
Homework

Problems: 5,13,59,65,70.