PHYS 1112 - Introductory Physics II
Lesson 2 - Electric Fields

Study Assignment:

Study: Chapter 19, Sections 19.4 - 19.6

Lesson notes:

The electric field vector provides a useful method for describing the results of a charge distribution. The electric field vector is analogous to the gravitational field vector discussed in PHYS 1111.

Objectives:

1. Know the definition of the electric field vector.

2. Be able to calculate the resultant electric field at a position in space due to the presence of a single or multiple point charges.

3. Know how to calculate the force on a point charge which is located at a position in space where the electric field vector is known.

4. Understand qualitatively the meaning of electric field lines.

5. Be able to sketch the electric field lines in space around a charge distribution.

6. Understand that under electrostatic conditions, the electric field is zero inside a conductor, that any net electric charge on a conductor must lie on its surface and that the electric field just outside the surface of a conductor is perpendicular to the surface.

Vocabulary:

positive test charge
electrostatic equilibrium

Homework:

TQ: 19-11, 19-15 
P: 19-a. (Example 19-5, page 626 will help.)  TP:19-34, 19-41, 19-69 

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Last update: August 07, 2007