When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. Alternating current - Wikipedia

    en.wikipedia.org/wiki/Alternating_current

    Alternating current (AC) is an electric current that periodically reverses direction and changes its magnitude continuously with time, in contrast to direct current (DC), which flows only in one direction. Alternating current is the form in which electric power is delivered to businesses and residences, and it is the form of electrical energy ...

  3. Electric current - Wikipedia

    en.wikipedia.org/wiki/Electric_current

    An electric current is a flow of charged particles, [1] [2] [3] ... Alternating electric current flows through the solenoid, producing a changing magnetic field.

  4. Three-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Three-phase_electric_power

    Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2] It is a type of polyphase system employing three wires (or four including an optional neutral return wire) and is the most common method used by electrical grids worldwide to transfer ...

  5. Nikola Tesla - Wikipedia

    en.wikipedia.org/wiki/Nikola_Tesla

    Order of the White Lion (1937) Signature. Nikola Tesla (/ ˈtɛslə /; [2] Serbian Cyrillic: Никола Тесла, [nǐkola têsla]; 10 July 1856 [a] – 7 January 1943) was a Serbian-American [3][4] engineer, futurist, and inventor. He is known for his contributions to the design of the modern alternating current (AC) electricity supply system.

  6. War of the currents - Wikipedia

    en.wikipedia.org/wiki/War_of_the_currents

    The war of the currents was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It grew out of two lighting systems developed in the late 1870s and early 1880s; arc lamp street lighting running on high-voltage alternating current (AC), and large-scale low-voltage direct current (DC) indoor incandescent lighting ...

  7. Charles Proteus Steinmetz - Wikipedia

    en.wikipedia.org/wiki/Charles_Proteus_Steinmetz

    Charles Proteus Steinmetz (born Karl August Rudolph Steinmetz; April 9, 1865 – October 26, 1923) was an American mathematician and electrical engineer and professor at Union College. He fostered the development of alternating current that made possible the expansion of the electric power industry in the United States, formulating mathematical ...

  8. Electricity - Wikipedia

    en.wikipedia.org/wiki/Electricity

    Alternating current is any current that reverses direction repeatedly; almost always this takes the form of a sine wave. [44]: 206–07 Alternating current thus pulses back and forth within a conductor without the charge moving any net distance over time. The time-averaged value of an alternating current is zero, but it delivers energy in first ...

  9. Faraday's law of induction - Wikipedia

    en.wikipedia.org/wiki/Faraday's_law_of_induction

    Alternating electric current flows through the solenoid on the left, producing a changing magnetic field. This field causes, by electromagnetic induction, an electric current to flow in the wire loop on the right. The most widespread version of Faraday's law states: