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  2. Induction coil - Wikipedia

    en.wikipedia.org/wiki/Induction_coil

    Antique induction coil used in schools from around 1900, Bremerhaven, Germany. An induction coil or "spark coil" (archaically known as an inductorium or Ruhmkorff coil [1] after Heinrich Rühmkorff) is a type of transformer [2] [3] [4] used to produce high-voltage pulses from a low-voltage direct current (DC) supply.

  3. Heinrich Daniel Ruhmkorff - Wikipedia

    en.wikipedia.org/wiki/Heinrich_Daniel_Ruhmkorff

    Heinrich Daniel Rühmkorff (German: [ˈhaɪnʁɪç ˈdaːni̯ɛl ˈʁyːm.kɔʁf]; anglicized as Ruhmkorff; 15 January 1803 – 20 December 1877) was a German instrument maker who commercialised the induction coil (often referred to as the Ruhmkorff coil). Ruhmkorff was born in Hanover. He changed the "ü" to "u" in his name when living abroad.

  4. Nicholas Callan - Wikipedia

    en.wikipedia.org/wiki/Nicholas_Callan

    Wound on top of this is a secondary coil made up of many turns of thin wire. An iron armature and make-and-break mechanism repeatedly interrupts the current to the primary coil, producing a high-voltage, rapidly alternating current in the secondary circuit. Callan invented the induction coil because he needed to generate a higher level of ...

  5. File:Early induction coil, 1838.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Early_induction_coil...

    English: Early induction coil, 1838, by Charles G. Page (US). Exhibit in National Museum of American History, Washington, DC, USA. The arm dipping into the glass cup was an early "contact breaker" or "interrupter" which repeatedly broke the current to the primary to create the flux changes needed for induction. The cup was filled with mercury ...

  6. Induction heater - Wikipedia

    en.wikipedia.org/wiki/Induction_heater

    Induction heating is a non contact method of heating a conductive body by utilising a strong magnetic field.Supply (mains) frequency 50 Hz or 60 Hz induction heaters incorporate a coil directly fed from the electricity supply, typically for lower power industrial applications where lower surface temperatures are required.

  7. Induction coils - Wikipedia

    en.wikipedia.org/?title=Induction_coils&redirect=no

    From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Induction coil; Retrieved from " ...

  8. Trembler coil - Wikipedia

    en.wikipedia.org/wiki/Trembler_coil

    The trembler coil was a device called a Ruhmkorff or induction coil, widely used in the 19th century. [5] It combines two magnetic devices on the same iron-cored solenoid. The first is a transformer, used to transform low voltage electricity to a high voltage, suitable for an engine's spark plug. Two coils of wire are wound around an iron core.

  9. Induction cooking - Wikipedia

    en.wikipedia.org/wiki/Induction_cooking

    An induction cooker wirelessly transfers electrical energy by induction from a coil of wire into a metal vessel. The coil is mounted under the cooking surface, and a low radio frequency (typically ~25-50 kHz [1]) alternating current is passed through it. The current in the coil creates a dynamic electromagnetic field which is strongly magnetic.

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