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- Induction_coil abstract "An induction coil or "spark coil" (archaically known as an inductorium or Ruhmkorff coil after Heinrich Ruhmkorff) is a type of electrical transformer used to produce high-voltage pulses from a low-voltage direct current (DC) supply. To create the flux changes necessary to induce voltage in the secondary, the direct current in the primary is repeatedly interrupted by a vibrating mechanical contact called an interrupter. Developed beginning in 1836 by Nicholas Callan and others, the induction coil was the first type of transformer. They were widely used in x-ray machines, spark-gap radio transmitters, arc lighting and quack medical electrotherapy devices from the 1880s to the 1920s. Today their only use is as the ignition coils in internal combustion engines, and in physics education to demonstrate induction.The term 'induction coil' is also used for a coil carrying high-frequency alternating current (AC), producing eddy currents to heat objects placed in the interior of the coil, in induction heating or zone melting equipment.".
- Induction_coil thumbnail Induktionsapparat_hg.jpg?width=300.
- Induction_coil wikiPageExternalLink ?id=17sKAAAAIAAJ&pg=PA16.
- Induction_coil wikiPageExternalLink ?id=dJNPAAAAMAAJ&pg=PA98.
- Induction_coil wikiPageExternalLink 03262334.pdf.
- Induction_coil wikiPageExternalLink page8.html.
- Induction_coil wikiPageExternalLink homemade_ignition_coil_driver.htm.
- Induction_coil wikiPageID "250708".
- Induction_coil wikiPageRevisionID "606741963".
- Induction_coil align "center".
- Induction_coil caption "Early coil by Charles G. Page, 1838, had one of the first automatic interrupters. The cup was filled with mercury. The magnetic field attracted the iron piece on the arm , lifting the wire out of the cup, breaking the primary circuit.".
- Induction_coil caption "Early coil by William Sturgeon, 1837. The sawtooth zinc interrupter wheel ' was turned by hand. The first coil to use a divided core of iron wires ' to prevent eddy currents.".
- Induction_coil caption "Induction coil by Heinrich Ruhmkorff, 1850s. In addition to the hammer interrupter ', it had a mercury interrupter by Fizeau ' that could be adjusted to change the dwell time.".
- Induction_coil caption "Modern automobile ignition coil, the largest remaining use for induction coils".
- Induction_coil caption "One of the largest coils ever constructed, built in 1877 by Alfred Apps for William Spottiswoode. Wound with 280 miles of wire, could produce a 42 in. spark, corresponding to roughly one million volts. Powered by 30 quart size liquid batteries and a separate interrupter .".
- Induction_coil caption "Vibrator ignition coil used in early automobiles such as the Ford Model T around 1910".
- Induction_coil direction "horizontal".
- Induction_coil hasPhotoCollection Induction_coil.
- Induction_coil image "Igncoil.jpg".
- Induction_coil image "Large Apps-Spottiswoode induction coil.png".
- Induction_coil image "NMAH DC - IMG 8815.JPG".
- Induction_coil image "Ruhmkorff coil.png".
- Induction_coil image "Vibrator ignition coil.png".
- Induction_coil image "William Sturgeons first induction coil.png".
- Induction_coil width "120".
- Induction_coil width "133".
- Induction_coil width "135".
- Induction_coil width "150".
- Induction_coil width "210".
- Induction_coil width "255".
- Induction_coil subject Category:Electrical_breakdown.
- Induction_coil subject Category:Transformers_(electrical).
- Induction_coil comment "An induction coil or "spark coil" (archaically known as an inductorium or Ruhmkorff coil after Heinrich Ruhmkorff) is a type of electrical transformer used to produce high-voltage pulses from a low-voltage direct current (DC) supply. To create the flux changes necessary to induce voltage in the secondary, the direct current in the primary is repeatedly interrupted by a vibrating mechanical contact called an interrupter.".
- Induction_coil label "Bobina de Ruhmkorff".
- Induction_coil label "Bobina de indução".
- Induction_coil label "Bobine de Ruhmkorff".
- Induction_coil label "Cewka Ruhmkorffa".
- Induction_coil label "Funkeninduktor".
- Induction_coil label "Induction coil".
- Induction_coil label "Rocchetto di Ruhmkorff".
- Induction_coil label "Vonkinductor".
- Induction_coil label "Катушка Румкорфа".
- Induction_coil label "誘導コイル".
- Induction_coil sameAs Funkeninduktor.
- Induction_coil sameAs Bobina_de_Ruhmkorff.
- Induction_coil sameAs Bobine_de_Ruhmkorff.
- Induction_coil sameAs Rocchetto_di_Ruhmkorff.
- Induction_coil sameAs 誘導コイル.
- Induction_coil sameAs Vonkinductor.
- Induction_coil sameAs Cewka_Ruhmkorffa.
- Induction_coil sameAs Bobina_de_indução.
- Induction_coil sameAs m.01l65x.
- Induction_coil sameAs Q1417360.
- Induction_coil sameAs Q1417360.
- Induction_coil wasDerivedFrom Induction_coil?oldid=606741963.
- Induction_coil depiction Induktionsapparat_hg.jpg.
- Induction_coil isPrimaryTopicOf Induction_coil.
