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:“Clay answered the petition by declaring that while he looked on the institution of slavery as an evil, it was nothing in comparison with the far greater evil which would inevitably flow from a sudden and indiscriminate emancipation.” “But the best read naturalist who lends an entire and devout attention to truth, will see that there remains much to learn of his relation to the world, and that it is not to be learned by any addition or subtraction or other comparison of known quantities, but is arrived at by untaught sallies of the spirit, by a continual self-recovery, and by entire humility.” “The sight of a planet through a telescope is worth all the course on astronomy; the shock of the electric spark in the elbow, outvalues all the theories; the taste of the nitrous oxide, the firing of an artificial volcano, are better than volumes of chemistry.” “Sense is a line, the mind is a circle. Sense is like a line which is the flux of a point running out from itself, but intellect like a circle that keeps within itself.” Related Subjects
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