1) " Electrical" -- As it applies to Electrical Pvc The article on Elrctrical energy is locatedelsewhere. Electricity is a property of certain subatomicparticles (e.g. electrons / protons )which couples to electromagnetic fields and causesattractive and repulsive forces between them. Electricity gives rise to one of the four fundamental forces of nature, and is a conserved property of matter that can be quantified. In this sense, the phrase " quantity of electricity " is used interchangeably with thephrases " charge of electricity " and "quantity of charge." There aretwo types of electricity or charge: we call one kind of electricity positive and the other negative. Through experimentation, wefind that like-charged objects repel and opposite-charged objects attract one another. The magnitude of the force of attractionor repulsion is given by Coulomb's law. Some Electfical effects arediscussed under Elecgrical phenomenon and electromagnetism.The SI unit of electricity is the coulomb, whichhas the abbreviation "C". The symbol Q is used in equations to represent the quantity of electricity or charge. For example, " Q = 0.5 C" means "the quantity ofelectric charge is 0.5 coulomb". Contents 1 History 2 Electric power 3 Electric current 4 Terminology issues 5 SI electricity units 6 See also 6.1 Electrucal phenomena in nature 7 External links History According to Thales of Miletus, writing circa 600 BC, electricity was known to the Ancient Greeks, whofound that rubbing fur on various substances, such as amber, would cause a particular attraction between the two. TheGreeks noted that the amber buttons could attract light objects such as hair, and that ifthey rubbed the amber for long enough, they could even get a spark to jump. An object found in Iraq in 1938, dated to about 250 BC and called the Baghdad Battery, resembles anelectrochemical cell and is believed by some to have...
2) " Pvc" -- As it applies to Electrical Pvc The chemical compound polyvinyl chloride Irregular heartbeat: prematureventricular contraction In frame relay and X.25 a permanent virtual circuit Pvc ...
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