小磁体在金属管中下落的阻尼运动研究

doi:10.16854 / j.cnki.1000-0712.210140

College Physics ›› 2021, Vol. 40 ›› Issue (12): 52-.doi: 10.16854 / j.cnki.1000-0712.210140

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Research on the damped motion of a small magnet falling in a metal tube

WANG Kai-ze，TAO Xiao-ping

School of Physical Sciences，University of Science and Technology of China，Hefei，Anhui 230026，China

Received:2021-03-24 Revised:2021-05-06 Online:2021-12-10 Published:2021-12-15

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Abstract

Abstract:

The paper quantitatively studies the motion of the small magnet falling on the metal

tube，gives the relevant theoretical formulas，and designs experiments that measure physical

parameters such as the falling speed of the small magnet，the magnetic moment of the small magnet

and the resistivity of the metal tube.

Key words: permanent magnet, magnetic moment, vortex, damped motion

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WANG Kai-ze, TAO Xiao-ping. Research on the damped motion of a small magnet falling in a metal tube[J].College Physics, 2021, 40(12): 52-.

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URL: https://dxwl.bnu.edu.cn/EN/10.16854 / j.cnki.1000-0712.210140

https://dxwl.bnu.edu.cn/EN/Y2021/V40/I12/52

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