Electrostatics | Wikipedia audio article
Channel: wikipedia tts
Date: 08/12/2018

This is an audio version of the Wikipedia Article:
Electrostatics


00:01:39 1 Coulomb's law
00:06:33 2 Electric field
00:11:45 2.1 Gauss' law
00:14:29 2.2 Poisson and Laplace equations
00:15:24 3 Electrostatic approximation
00:16:42 3.1 Electrostatic potential
00:18:24 3.2 Electrostatic energy
00:22:58 3.3 Electrostatic pressure
00:26:26 4 Triboelectric series
00:27:13 5 Electrostatic generators
00:28:10 6 Charge neutralization
00:29:58 7 Electrostatic induction
00:30:35 8 'Static' electricity
00:32:02 8.1 Static electricity and chemical industry
00:33:22 8.1.1 Applicable standards
00:36:33 9 Electrostatic induction in commercial applications
00:37:08 10 See also
00:37:57 11 References



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SUMMARY
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Electrostatics is a branch of physics that studies electric charges at rest.
Since classical physics,  it has been known that some materials such as amber attract lightweight particles after rubbing. The Greek word for amber, ήλεκτρον, or electron, was the source of the word 'electricity'. Electrostatic phenomena arise from the forces that electric charges exert on each other. Such forces are described by Coulomb's law.
Even though electrostatically induced forces seem to be rather weak, some electrostatic forces such as the one between an electron and a proton, that together make up a hydrogen atom, is about 36 orders of magnitude stronger than the gravitational force acting between them.
There are many examples of electrostatic phenomena, from those as simple as the attraction of the plastic wrap to one's hand after it is removed from a package to the apparently spontaneous explosion of grain silos, the damage of electronic components during manufacturing, and photocopier & laser printer operation. Electrostatics involves the buildup of charge on the surface of objects due to contact with other surfaces. Although charge exchange happens whenever any two surfaces contact and separate, the effects of charge exchange are usually only noticed when at least one of the surfaces has a high resistance to electrical flow.  This is because the charges that transfer are trapped there for a time long enough for their effects to be observed.  These charges then remain on the object until they either bleed off to ground or are quickly neutralized by a discharge: e.g., the familiar phenomenon of a static 'shock' is caused by the neutralization of charge built up in the body from contact with insulated surfaces.