electricity

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electricity

Post by shreyas on Fri Jul 09, 2010 7:02 pm

Electricity


Electricity (from the New Latin ēlectricus, "amber-like"[a]) is a general term that encompasses a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning and static electricity, but in addition, less familiar concepts, such as the electromagnetic field and electromagnetic induction.

In general usage, the word "electricity" is adequate to refer to a number of physical effects. In scientific usage, however, the term is vague, and these related, but distinct, concepts are better identified by more precise terms:


  • Electric charge – a property of some subatomic particles, which determines their electromagnetic interactions. Electrically charged matter is influenced by, and produces, electromagnetic fields.
  • Electric current – a movement or flow of electrically charged particles, typically measured in amperes.
  • Electric field – an influence produced by an electric charge on other charges in its vicinity.
  • Electric potential – the capacity of an electric field to do work on an electric charge, typically measured in volts.
  • Electromagnetism – a fundamental interaction between the magnetic field and the presence and motion of an electric charge.


Last edited by Sujith on Fri Jul 09, 2010 7:06 pm; edited 1 time in total (Reason for editing : Please Format your posts and don't copy and paste from WIKI)
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Re: electricity

Post by Sujith on Fri Jul 09, 2010 7:07 pm

Moved to physics Tutorials

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