Nineteenth-Century Developments in Coiled Instruments and Experiences with Electromagnetic Induction

  title={Nineteenth-Century Developments in Coiled Instruments and Experiences with Electromagnetic Induction},
  author={Elizabeth Cavicchi},
  journal={Annals of Science},
  pages={319 - 361}
  • E. Cavicchi
  • Published 1 July 2006
  • Physics
  • Annals of Science
Summary Faraday demonstrated electromagnetic induction in 1831 using an iron ring wound with two wire coils; on interrupting battery current in one coil, momentary currents arose in the other. Between Faraday's ring and the induction coil, coiled instruments developed via meandering paths. This paper explores the opening phase of that work in the late 1830s, as the iron core, primary wire coil, and secondary wire coil were researched and differentiated. ‘Working knowledge’ (defined by Baird… 
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  • Proceedings of the London Electrical Society
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    338 7. Two conjoined wires separate into two wires, two coils
      The single conductor differentiates to two paths *and relapses to one path