Determination of the acceleration due to gravity by studying magnet s motion through a conducting pipe
Physics Education
2026-05-06 v1
Abstract
We determine the acceleration due to gravity (g) in a novel way using a magnetic sensor and video analysis technique of a smartphone. The same applications are used to measure the terminal velocity of a magnet falling through a conducting pipe and the magnetic moment of the magnet from its torsional oscillations. This experiment would appear to be intriguing, as it combines elements of magnetism, terminal velocity, and electromagnetic damping to determine g.
Keywords
Cite
@article{arxiv.2605.03291,
title = {Determination of the acceleration due to gravity by studying magnet s motion through a conducting pipe},
author = {Sanjoy Kumar Pal and Soumen Sarkar and Pradipta Panchadhyayee},
journal= {arXiv preprint arXiv:2605.03291},
year = {2026}
}