DocumentCode
886513
Title
Electromagnetic theory without electric flux
Author
Carpenter, C.J.
Author_Institution
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
Volume
139
Issue
4
fYear
1992
fDate
7/1/1992 12:00:00 AM
Firstpage
189
Lastpage
209
Abstract
Whereas, to the physicist, the electric field in space is completely described by the field vector E, engineers commonly add the flux density, or displacement vector D as a separate quantity, and many regard the SI units as endorsing the need for two different vectors. The author examines the practical implications of a treatment which makes the concept of electric flux unnecessary, by concentrating attention of the charges. The electric field is defined as the potential, phi , and its gradient becomes an auxiliary function, thus reversing their customary roles. The distinction between what is meant by the terms ´electric´ and ´magnetic´ also changes. It is shown that this approach has advantages in electrostatic theory, clarifies the concept of potential datum, and gives an entirely different view of electromagnetic propagation. Energy radiation is described in terms of the behaviour of the charges instead of the fluxes and characterises most electromagnetic devices.
Keywords
electric fields; electromagnetic wave propagation; electromagnetism; EM theory; charges; electric field; electromagnetic propagation; electrostatic theory; gradient; potential;
fLanguage
English
Journal_Title
Science, Measurement and Technology, IEE Proceedings A
Publisher
iet
ISSN
0960-7641
Type
jour
Filename
210719
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