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Computation of electric fields from electric charges: Coulomb's law or poisson's equation
Author(s) -
Fazarinc Zvonko
Publication year - 1993
Publication title -
computer applications in engineering education
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.478
H-Index - 29
eISSN - 1099-0542
pISSN - 1061-3773
DOI - 10.1002/cae.6180010507
Subject(s) - coulomb's law , coulomb , poisson's equation , gauss's law , electric field , computation , poisson distribution , electric potential , electric field integral equation , law , physics , mathematics , classical mechanics , mathematical analysis , quantum mechanics , partial differential equation , algorithm , voltage , political science , electron , statistics
Coulomb's Law and Poisson's equation are revisited and compared as algorithms for computer evaluation of electric force fields. In the course of this examination we point to the danger of applying physical laws measured in three‐dimensional space to spaces of other dimensionalities. The algorithms based on Coulomb's Law and on Poisson's equation are cast in C‐language and are illustrated with a two‐dimensional example.