Analyzing a Free-Falling Magnet to Measure Gravitational Acceleration Using a Smartphone’s Magnetometer

• Praveen Pathak ^[1] ; Yogita Patel ^[1]
  1. [1] Tata Institute of Fundamental Research
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 60, Nº. 6, 2022, págs. 441-443
• Idioma: inglés
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• Resumen

  • A smartphone magnetometer is used to record the magnetic field of a freely falling point dipole magnet. The recorded magnetic field vs. time data are analyzed in accordance with the spatial dependence of the magnetic field to calculate the acceleration due to gravity g. The experiment gives local g to be 9.79 ± 1.9% m/s2.