EIT Electrical Review, Second Edition

Chapter 10: Electric and Magnetic Fields (Both Static and Dynamic)

This chapter assumes the reader is already familiar with introductory level (i.e., static) electromagnetic concepts (i.e., static or non-time dependent) such as that presented in morning section of the review. However some repetition will be necessary for continuity and to provide some review before any dynamic electromagnetic relationships are presented. When taking the afternoon examination, the examinee will have both the FE Reference Handbook and the FE Discipline Specific Addendum booklets available. Thus, any problems presented where these equations are needed may be quickly be referenced. Many basic equations may not be given but assumed; hence the need for a review (other equations or relationships unique to a particular problem would undoubtedly be included in the problem statement). In addition to this review, the reader is urged to have available a full text on the subject; the best being his familiar college text, if not available a particularly good one is by Cheng [1].

Electric Fields

Scalar Potential as a Line Integral:

The potential difference between two points in a static electric field due to a single charge source is the same whether the path is the shortest distance between the points or any other path; thus this potential is single valued. Now if the path of two points, "a" and "b" are located in a uniform electric field (rather than from a point charge) and a test charge is moved from "a" to "b" against the field, the potential difference is obviously V ba= (x b-x

UNLIMITED FREE
ACCESS
TO THE WORLD'S BEST IDEAS

SUBMIT
Already a GlobalSpec user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your GlobalSpec Experience

Category: Electrical Field Strength Sensors
Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.