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by tiffany3140 on January 14th, 2010

tiffany3140

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what is electricty

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  • by XT on January 14th, 2010

    XT

    Electricity (from the New Latin ēlectricus, "amber-like") 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.

    Electrical phenomena have been studied since antiquity, though advances in the science were not made until the seventeenth and eighteenth centuries. Practical applications for electricity however remained few, and it would not be until the late nineteenth century that engineers were able to put it to industrial and residential use. The rapid expansion in electrical technology at this time transformed industry and society. Electricity's extraordinary versatility as a source of energy means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation. The backbone of modern industrial society is, and for the foreseeable future can be expected to remain, the use of electrical power.

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  • by TAPriceCTR s son is wearing his COAT on January 14th, 2010

    TAPriceCTR s son is wearing his COAT

    electricity is the movement of electrons. kinda like hydraulic fluids flowing through pipes but in general it can not pool up which is refered to as static electricity. other than static electricity it does not really "exist" unless it is moving. DC electricity is electrons flowing in a loop and AC is electrons flowing back and forth.

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  • by jaqes on January 14th, 2010

    jaqes

    Electricity is one of the primary forms of energy. Although we cannot see electricity, we know it is present when we see light from light bulbs, hear a stereo, feel heat from a space heater, or use a computer. Here we look at what electricity is and how it powers these everyday activities.
    http://www.usedtrucksbuyer.com/

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