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Faraday’s Law of Induction by Experiment

Abstract:
Measuring magnetic induction is occasionally performed by our students during their academic training in physics. Among the various methods used to measure it, the Hall effect is the most common and widespread. Another way consists of employing an electronic flux-meter. It is constituted by a small flat coil (SFC) connected to the input of an integrator circuit working with an op amp, whereas the output is connected to a data logger. Then, the SFC is moved perpendicularly to the direction of the magnetic field. Finally, the application of Faraday’s law allows the calculation of the magnetic induction. An electromotive force (EMF) is also induced across the ends of the SFC when it is held stationary in a variable magnetic field. However, this kind of integrator raises numerous problems because the op amp is sensitive to bias and offset currents; both are integrated, leading to the saturation of the output signal.Measuring magnetic induction is occasionally performed by our students during their academic training in physics. Among the various methods used to measure it, the Hall effect is the most common and widespread. Another way consists of employing an electronic flux-meter. It is constituted by a small flat coil (SFC) connected to the input of an integrator circuit working with an op amp, whereas the output is connected to a data logger. Then, the SFC is moved perpendicularly to the direction of the magnetic field. Finally, the application of Faraday’s law allows the calculation of the magnetic induction. An electromotive force (EMF) is also induced across the ends of the SFC when it is held stationary in a variable magnetic field. However, this kind of integrator raises numerous problems because the op amp is sensitive to bias and offset currents; both are integrated, leading to the saturation of the output signal.
Author Listing： Kader Médjahdi
Volume： 57
Pages： 560-561
DOI： 10.1119/1.5131127
Language： English
Journal： The Physics Teacher

PHYSICS TEACHER

PHYS TEACH

影响因子：0.6
是否综述期刊：否
是否OA：否
是否预警：不在预警名单内
发行时间：-
ISSN：0031-921X
发刊频率：-
收录数据库：SCIE/Scopus收录
出版国家/地区：UNITED STATES
出版社：American Institute of Physics

期刊介绍

TPT publishes peer-reviewed papers on the teaching of introductory physics and on topics such as contemporary physics, applied physics, and the history of physics. Dedicated to strengthening the teaching of introductory physics at all levels, including secondary schools colleges and universities, TPT provides peer-reviewed content and materials to be used in classrooms and instructional laboratories.

TPT发表关于物理学入门教学和当代物理学、应用物理学和物理学史等主题的同行评审论文。TPT致力于加强包括中学、学院和大学在内的所有级别的入门物理教学，提供供课堂和教学实验室使用的同行评审内容和材料。

年发文量 153
国人发稿量 4
国人发文占比 2.33%
自引率 50.0%
平均录取率 -
平均审稿周期 -
版面费 -
偏重研究方向 PHYSICS, MULTIDISCIPLINARY-
期刊官网 http://scitation.aip.org/content/aapt/journal/tpt
投稿链接 https://editorialexpress.com/cgi-bin/e-editor/e-submit_v15.cgi?dbase=tpt

质量指标占比

研究类文章占比 OA被引用占比 撤稿占比 出版后修正文章占比
100.00% 3.27% 0.00% 1.44%

相关指数

影响因子
影响因子
年发文量
自引率
Cite Score

预警情况

时间 预警情况
2025年03月发布的2025版 不在预警名单中
2024年02月发布的2024版 不在预警名单中
2023年01月发布的2023版 不在预警名单中
2021年12月发布的2021版 不在预警名单中
2020年12月发布的2020版 不在预警名单中

JCR分区 WOS分区等级：Q4区

版本 按学科 分区
WOS期刊SCI分区
（2021-2022年最新版）
PHYSICS, MULTIDISCIPLINARY Q4
EDUCATION, SCIENTIFIC DISCIPLINES Q4

中科院分区

版本 大类学科 小类学科 Top期刊 综述期刊
教育学
4区
PHYSICS, MULTIDISCIPLINARY
物理：综合
4区
EDUCATION, SCIENTIFIC DISCIPLINES
学科教育
4区
 否 否
2021年12月
基础版
物理
4区
PHYSICS, MULTIDISCIPLINARY
物理：综合
4区
EDUCATION, SCIENTIFIC DISCIPLINES
学科教育
4区
 否 否
2021年12月
升级版
教育学
4区
PHYSICS, MULTIDISCIPLINARY
物理：综合
4区
EDUCATION, SCIENTIFIC DISCIPLINES
学科教育
4区
 否 否
2020年12月
旧的升级版
教育学
4区
PHYSICS, MULTIDISCIPLINARY
物理：综合
4区
EDUCATION, SCIENTIFIC DISCIPLINES
学科教育
4区
 否 否
2022年12月
最新升级版
教育学
4区
PHYSICS, MULTIDISCIPLINARY
物理：综合
4区
EDUCATION, SCIENTIFIC DISCIPLINES
学科教育
4区
 否 否
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