Magnetic Force between a Multilayered Solenoid and a Magnet

A solenoid is a coil wound many times on a cylinder of length greater than its diameter. Solenoids are mainly used as electromagnets, because a magnetic field is formed when current flows through a solenoid. The solenoid described in secondary school and university textbooks is a single-layered sole...

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Bibliographic Details
Published in:The Physics teacher 2022-11, Vol.60 (8), p.663-666
Main Authors: Ha, Hyejin, Jang, Taehun, Sohn, Sang Ho, Kim, Junghwa
Format: Article
Language:English
Subjects:
College Science
Magnets
Science Laboratories
Scientific Concepts
Secondary School Science
Textbooks
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Summary:A solenoid is a coil wound many times on a cylinder of length greater than its diameter. Solenoids are mainly used as electromagnets, because a magnetic field is formed when current flows through a solenoid. The solenoid described in secondary school and university textbooks is a single-layered solenoid. Further, textbooks and papers focusing on education primarily describe the magnetic fields caused by infinite solenoids. However, most solenoids used in laboratory or daily life are finite solenoids with multiple layers to achieve a strong magnetic field. Examples include solenoid valves, Faraday rotators, and modulators.
ISSN:0031-921X
1943-4928
DOI:10.1119/5.0053248