Perfectly conducting loop of wire moving through a uniform and stationary magnetic field

Detalhes bibliográficos
Autor(a) principal: Silveira,Fernando L. da
Data de Publicação: 2013
Outros Autores: Araujo,Ives S., Varriale,Maria C., Ziebell,Luiz F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Brasileira de Ensino de Física (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172013000100009
Resumo: A conductive loop of wire moving with constant velo city in a magnetic field is one of the most used examples in physics textbooks in connection to the Faraday-Lenz law, highlighting the consistency of electromagnetism with the principIe of conservation of energy. It is frequently concluded that currents are not induced in a perfectly conducting loop because an induced current would have to be infinite and therefore would violate the principIe of energy conservation. ln this paper we discuss this problem and show that a model that includes the loop self-inductance prevents the divergence of the current and leads to results compatible with the conservation of energy.
id SBF-1_1bc03ed0874a8082403c2b3b1d2717db
oai_identifier_str oai:scielo:S1806-11172013000100009
network_acronym_str SBF-1
network_name_str Revista Brasileira de Ensino de Física (Online)
repository_id_str
spelling Perfectly conducting loop of wire moving through a uniform and stationary magnetic fieldFaraday-Lenz lawauto-inductanceelectrical resistanceperfect conductorA conductive loop of wire moving with constant velo city in a magnetic field is one of the most used examples in physics textbooks in connection to the Faraday-Lenz law, highlighting the consistency of electromagnetism with the principIe of conservation of energy. It is frequently concluded that currents are not induced in a perfectly conducting loop because an induced current would have to be infinite and therefore would violate the principIe of energy conservation. ln this paper we discuss this problem and show that a model that includes the loop self-inductance prevents the divergence of the current and leads to results compatible with the conservation of energy.Sociedade Brasileira de Física2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172013000100009Revista Brasileira de Ensino de Física v.35 n.1 2013reponame:Revista Brasileira de Ensino de Física (Online)instname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S1806-11172013000100009info:eu-repo/semantics/openAccessSilveira,Fernando L. daAraujo,Ives S.Varriale,Maria C.Ziebell,Luiz F.eng2020-10-07T00:00:00Zoai:scielo:S1806-11172013000100009Revistahttp://www.sbfisica.org.br/rbef/https://old.scielo.br/oai/scielo-oai.php||marcio@sbfisica.org.br1806-91261806-1117opendoar:2020-10-07T00:00Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)false
dc.title.none.fl_str_mv Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
title Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
spellingShingle Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
Silveira,Fernando L. da
Faraday-Lenz law
auto-inductance
electrical resistance
perfect conductor
title_short Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
title_full Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
title_fullStr Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
title_full_unstemmed Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
title_sort Perfectly conducting loop of wire moving through a uniform and stationary magnetic field
author Silveira,Fernando L. da
author_facet Silveira,Fernando L. da
Araujo,Ives S.
Varriale,Maria C.
Ziebell,Luiz F.
author_role author
author2 Araujo,Ives S.
Varriale,Maria C.
Ziebell,Luiz F.
author2_role author
author
author
dc.contributor.author.fl_str_mv Silveira,Fernando L. da
Araujo,Ives S.
Varriale,Maria C.
Ziebell,Luiz F.
dc.subject.por.fl_str_mv Faraday-Lenz law
auto-inductance
electrical resistance
perfect conductor
topic Faraday-Lenz law
auto-inductance
electrical resistance
perfect conductor
description A conductive loop of wire moving with constant velo city in a magnetic field is one of the most used examples in physics textbooks in connection to the Faraday-Lenz law, highlighting the consistency of electromagnetism with the principIe of conservation of energy. It is frequently concluded that currents are not induced in a perfectly conducting loop because an induced current would have to be infinite and therefore would violate the principIe of energy conservation. ln this paper we discuss this problem and show that a model that includes the loop self-inductance prevents the divergence of the current and leads to results compatible with the conservation of energy.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172013000100009
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172013000100009
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1806-11172013000100009
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Física
publisher.none.fl_str_mv Sociedade Brasileira de Física
dc.source.none.fl_str_mv Revista Brasileira de Ensino de Física v.35 n.1 2013
reponame:Revista Brasileira de Ensino de Física (Online)
instname:Sociedade Brasileira de Física (SBF)
instacron:SBF
instname_str Sociedade Brasileira de Física (SBF)
instacron_str SBF
institution SBF
reponame_str Revista Brasileira de Ensino de Física (Online)
collection Revista Brasileira de Ensino de Física (Online)
repository.name.fl_str_mv Revista Brasileira de Ensino de Física (Online) - Sociedade Brasileira de Física (SBF)
repository.mail.fl_str_mv ||marcio@sbfisica.org.br
_version_ 1752122421758918656

Registros relacionados