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  2. William Sturgeon - Wikipedia

    en.wikipedia.org/wiki/William_Sturgeon

    The magnet was made of 18 turns of bare copper wire (insulated wire had not yet been invented). [1] William Sturgeon (/ ˈ s t ɜːr dʒ ə n /; 22 May 1783 – 4 December 1850) was an English electrical engineer and inventor who made the first electromagnet and the first practical electric motor.

  3. Electromagnet - Wikipedia

    en.wikipedia.org/wiki/Electromagnet

    British scientist William Sturgeon invented the electromagnet in 1824. [ 3 ] [ 4 ] His first electromagnet was a horseshoe-shaped piece of iron that was wrapped with about 18 turns of bare copper wire.

  4. 1825 – William Sturgeon, founder of the first English Electric Journal, Annals of Electricity, found that an iron core inside a helical coil of wire connected to a battery greatly increased the resulting magnetic field, thus making possible the more powerful electromagnets utilizing a ferromagnetic core. Sturgeon also bent the iron core into ...

  5. Timeline of the electric motor - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_electric_motor

    1825–1833 William Sturgeon: British, scientist; 1825 – invented the electro-magnet; 1833 – built first commutated rotating electric machine that was demonstrated in London. [3] 1832–33, Hippolyte Pixii: French, instrument maker, built the first AC generating apparatus out of a rotation; and, the following year, an oscillating DC generator.

  6. History of electromagnetic theory - Wikipedia

    en.wikipedia.org/wiki/History_of_electromagnetic...

    In 1825 William Sturgeon of Woolwich, England, invented the horseshoe and straight bar electromagnet, receiving therefor the silver medal of the Society of Arts. [71] In 1837 Carl Friedrich Gauss and Weber (both noted workers of this period) jointly invented a reflecting galvanometer for telegraph purposes.

  7. Magnet - Wikipedia

    en.wikipedia.org/wiki/Magnet

    A magnet is a material or object ... This led William Sturgeon to develop an iron ... with the cube of the distance from the magnet's center. Closer to the magnet ...

  8. History of electrical engineering - Wikipedia

    en.wikipedia.org/wiki/History_of_electrical...

    William Sturgeon invented the electromagnet in 1825. [19] Electromagnets were then used in the first practical engineering application of electricity by William Fothergill Cooke and Charles Wheatstone who co-developed a telegraph system that used a number of needles on a board which were moved to point to letters of the alphabet. A five needle ...

  9. History of electrochemistry - Wikipedia

    en.wikipedia.org/wiki/History_of_electrochemistry

    William Sturgeon built an electric motor in 1832 and invented the commutator, a ring of metal-bristled brushes which allow the spinning armature to maintain contact with the electric current and changed the alternating current to a pulsating direct current. He also improved the voltaic battery and worked on the theory of thermoelectricity.