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 |
|---|
Read more about this topic: Magnetic Flux Famous quotes containing the words comparison with, comparison, electric and/or flux:“In everyone’s youthful dreams, philosophy is still vaguely but inseparably, and with singular truth, associated with the East, nor do after years discover its local habitation in the Western world. In comparison with the philosophers of the East, we may say that modern Europe has yet given birth to none.” “In comparison to the French Revolution, the American Revolution has come to seem a parochial and rather dull event. This, despite the fact that the American Revolution was successful—realizing the purposes of the revolutionaries and establishing a durable political regime—while the French Revolution was a resounding failure, devouring its own children and leading to an imperial despotism, followed by an eventual restoration of the monarchy.” “Persons grouped around a fire or candle for warmth or light are less able to pursue independent thoughts, or even tasks, than people supplied with electric light. In the same way, the social and educational patterns latent in automation are those of self- employment and artistic autonomy.” “Existence is no more than the precarious attainment of relevance in an intensely mobile flux of past, present, and future.” |