A smartphone-based simple method for determination of the permeability of free space

• Sanjoy Kumar Pal ^[1] ; Soumen Sarkar ^[1] ; Pradipta Panchadhyayee ^[2]
  1. [1] Institute of Astronomy

     Institute of Astronomy

     Rusia

     
  2. [2] Prabhat Kumar College, Contai, India; Institute of Astronomy, Space and Earth Science, Kolkata, India
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 62, Nº. 6, 2024, págs. 532-533
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • A simple and novel method is designed to determine the permeability of free space. This value is computed from the expression of the terminal velocity of a magnet falling through a conducting pipe using the magnetic sensor of a smartphone and a video player. This method is important because of the accuracy and precision of the results.