The unusual phenomenon of electromagnetic induction

This paper describes the unusual phenomenon of electromagnetic induction that occurs when a Nd–Fe–B magnet is passed through a hollow paramagnetic aluminum tube and conduction of eddy current happens. It was observed that the time taken by the Nd–Fe–B magnet to pass through a 1 m aluminum tube is lo...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jyhjeng Deng, Chih-Tsung Chen
Formato:	article
Lenguaje:	EN
Publicado:	AIP Publishing LLC 2021
Materias:	Physics QC1-999
Acceso en línea:	https://doaj.org/article/62c19c7877f841cfb932f392744a9dfd
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:62c19c7877f841cfb932f392744a9dfd
record_format	dspace
spelling	oai:doaj.org-article:62c19c7877f841cfb932f392744a9dfd2021-12-01T18:52:06ZThe unusual phenomenon of electromagnetic induction2158-322610.1063/5.0064760https://doaj.org/article/62c19c7877f841cfb932f392744a9dfd2021-11-01T00:00:00Zhttp://dx.doi.org/10.1063/5.0064760https://doaj.org/toc/2158-3226This paper describes the unusual phenomenon of electromagnetic induction that occurs when a Nd–Fe–B magnet is passed through a hollow paramagnetic aluminum tube and conduction of eddy current happens. It was observed that the time taken by the Nd–Fe–B magnet to pass through a 1 m aluminum tube is longer than that through a 2 m tube. A tentative theory for this phenomenon is that due to the paramagnetism of the aluminum tube, the 2 m tube induces a more potent induction to pull the Nd–Fe–B magnet downward than that present in the 1 m tube. This scientific effect, which is coined herein as a length-boost effect, can create a situation that contradicts the conventional thinking that it should take a longer time to fall through a longer tube. One application of this is in controlling the velocity of a falling Nd–Fe–B magnet by changing the length of the aluminum pipe. The other is using aluminum as braking fins in free-fall chairs at amusement parks to reduce heat dissipation. However, diamagnetic tubes, such as those composed of copper and brass, do not possess this effect. A magnet falling through longer tubes of these metals takes a longer time than through shorter tubes.Jyhjeng DengChih-Tsung ChenAIP Publishing LLCarticlePhysicsQC1-999ENAIP Advances, Vol 11, Iss 11, Pp 115012-115012-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999
spellingShingle	Physics QC1-999 Jyhjeng Deng Chih-Tsung Chen The unusual phenomenon of electromagnetic induction
description	This paper describes the unusual phenomenon of electromagnetic induction that occurs when a Nd–Fe–B magnet is passed through a hollow paramagnetic aluminum tube and conduction of eddy current happens. It was observed that the time taken by the Nd–Fe–B magnet to pass through a 1 m aluminum tube is longer than that through a 2 m tube. A tentative theory for this phenomenon is that due to the paramagnetism of the aluminum tube, the 2 m tube induces a more potent induction to pull the Nd–Fe–B magnet downward than that present in the 1 m tube. This scientific effect, which is coined herein as a length-boost effect, can create a situation that contradicts the conventional thinking that it should take a longer time to fall through a longer tube. One application of this is in controlling the velocity of a falling Nd–Fe–B magnet by changing the length of the aluminum pipe. The other is using aluminum as braking fins in free-fall chairs at amusement parks to reduce heat dissipation. However, diamagnetic tubes, such as those composed of copper and brass, do not possess this effect. A magnet falling through longer tubes of these metals takes a longer time than through shorter tubes.
format	article
author	Jyhjeng Deng Chih-Tsung Chen
author_facet	Jyhjeng Deng Chih-Tsung Chen
author_sort	Jyhjeng Deng
title	The unusual phenomenon of electromagnetic induction
title_short	The unusual phenomenon of electromagnetic induction
title_full	The unusual phenomenon of electromagnetic induction
title_fullStr	The unusual phenomenon of electromagnetic induction
title_full_unstemmed	The unusual phenomenon of electromagnetic induction
title_sort	unusual phenomenon of electromagnetic induction
publisher	AIP Publishing LLC
publishDate	2021
url	https://doaj.org/article/62c19c7877f841cfb932f392744a9dfd
work_keys_str_mv	AT jyhjengdeng theunusualphenomenonofelectromagneticinduction AT chihtsungchen theunusualphenomenonofelectromagneticinduction AT jyhjengdeng unusualphenomenonofelectromagneticinduction AT chihtsungchen unusualphenomenonofelectromagneticinduction
_version_	1718404694408167424

The unusual phenomenon of electromagnetic induction

Ejemplares similares