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2. Induction cooking - Wikipedia

   en.wikipedia.org/wiki/Induction_cooking

   Side view of an induction stove. 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 ...

3. Cooktop - Wikipedia

   en.wikipedia.org/wiki/Cooktop

   In an induction cooktop ("induction hob" or "induction stove"), a coil of copper wire is placed under the cooking pot, and an alternating electric current is passed through it. The resulting oscillating magnetic field induces a magnetic flux that repeatedly magnetises the pot, treating it like the lossy magnetic core of a transformer .

4. 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 ...

5. Induction coil - Wikipedia

   en.wikipedia.org/wiki/Induction_coil

   For this reason, induction coils were called spark coils. An induction coil is traditionally characterised by the length of spark it can produce; a '4 inch' (10 cm) induction coil could produce a 4 inch spark. Until the development of the cathode ray oscilloscope, this was the most reliable measurement of peak voltage of such asymmetric ...

6. Nicholas Callan - Wikipedia

   en.wikipedia.org/wiki/Nicholas_Callan

   He invented the first induction coil in 1836. [3] [4] [5] An induction coil produces an intermittent high-voltage alternating current from a low-voltage direct current supply. It has a primary coil consisting of a few turns of thick wire wound around an iron core and subjected to a low voltage (usually from a battery). Wound on top of this is a ...

7. 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.