enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Electrical energy - Wikipedia

    en.wikipedia.org/wiki/Electrical_energy

    Electricity generation is the process of generating electrical energy from other forms of energy.. The fundamental principle of electricity generation was discovered during the 1820s and early 1830s by the British scientist Michael Faraday.

  3. Electric power - Wikipedia

    en.wikipedia.org/wiki/Electric_power

    Electric power is the rate of transfer of electrical energy within a circuit.Its SI unit is the watt, the general unit of power, defined as one joule per second.Standard prefixes apply to watts as with other SI units: thousands, millions and billions of watts are called kilowatts, megawatts and gigawatts respectively.

  4. Energy - Wikipedia

    en.wikipedia.org/wiki/Energy

    However energy can also be expressed in many other units not part of the SI, such as ergs, calories, British thermal units, kilowatt-hours and kilocalories, which require a conversion factor when expressed in SI units. The SI unit of power, defined as energy per unit of time, is the watt, which is a joule per second. Thus, one joule is one watt ...

  5. Electricity generation - Wikipedia

    en.wikipedia.org/wiki/Electricity_generation

    Electricity generation is the process of generating electric power from sources of primary energy.For utilities in the electric power industry, it is the stage prior to its delivery (transmission, distribution, etc.) to end users or its storage, using for example, the pumped-storage method.

  6. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    Electricity is the set of physical phenomena associated with the presence and motion of matter possessing an electric charge.Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations.

  7. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2]

  8. Energia - Wikipedia

    en.wikipedia.org/wiki/Energia

    Energia may refer to: Energia (corporation), or S. P. Korolev Rocket and Space Corporation Energia, a Russian design bureau and manufacturer Energia (rocket), a Soviet rocket designed by the company; Energia (company), a company that supplies gas and electricity in Northern Ireland and the Republic of Ireland

  9. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    The elementary charge is defined as a fundamental constant in the SI. [7] The value for elementary charge, when expressed in SI units, is exactly 1.602 176 634 × 10 −19 C. [1] After discovering the quantized character of charge, in 1891, George Stoney proposed the unit 'electron' for this fundamental unit of electrical charge. J. J.