Comparison With Electric Flux
By way of contrast, Gauss's law for electric fields, another of Maxwell's equations, is
where
- E is the electric field,
- S is any closed surface,
- Q is the total electric charge inside the surface S,
- ε0 is the electric constant (a universal constant, also called the "permittivity of free space").
Note that the flux of E through a closed surface is not always zero; this indicates the presence of "electric monopoles", that is, free positive or negative charges.
Magnetic Circuits |
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Read more about this topic: Magnetic Flux Famous quotes containing the words comparison with, comparison, electric and/or flux:“What is man in nature? A nothing in comparison with the infinite, an all in comparison with the nothinga mean between nothing and everything.” “The difference between human vision and the image perceived by the faceted eye of an insect may be compared with the difference between a half-tone block made with the very finest screen and the corresponding picture as represented by the very coarse screening used in common newspaper pictorial reproduction. The same comparison holds good between the way Gogol saw things and the way average readers and average writers see things.” “Wisdom is like electricity. There is no permanently wise man, but men capable of wisdom, who, being put into certain company, or other favorable conditions, become wise for a short time, as glasses rubbed acquire electric power for a while.” “Existence is no more than the precarious attainment of relevance in an intensely mobile flux of past, present, and future.” Related Subjects
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