Amazing Vibrations Within the Homopolar Motor

• Stanisław Bednarek ^[1]
  1. [1] University of Łódź

     University of Łódź

     Łódź, Polonia

     
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 56, Nº. 1, 2018, págs. 47-48
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The most common type of homopolar motor comprises a cylindrical neodymium magnet, a battery, and a non-ferromagnetic frame rotating around the battery. Here, the author substituted a coiled spring for the frame. Due to this change, a new and intriguing effect emerges, the axial buzzing of the spring during its rotation. This paper describes the construction of this motor and explains the reasons for the observed vibrations.