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Apply a smartphone's magnetometer to measure the AC current of electrical equipment.

Authors :
Vongvizay, Pathom
Udomsamuthirun, Pongkaew
Ruangrungrote, Siriluk
Nilkamjon, Tunyanop
Meakniti, Suppanyou
Kruaehong, Thitipong
Source :
Physics Teacher. Feb2025, Vol. 63 Issue 2, p130-131. 2p.
Publication Year :
2025

Abstract

The article explores the practical application of using smartphones equipped with magnetometer apps to measure the AC current of household appliances. By eliminating background magnetic fields, researchers were able to establish a linear relationship between the magnetic field and electric current, aligning with Ampere's law. The study demonstrates how smartphones can be used to directly measure AC current based on this relationship, providing a practical tool for merging abstract physics knowledge with real-world experiments. The research was conducted in Thailand and received financial support from The Royal Thai Government Scholarship under the Thailand-Laos PDR Bilateral Development Cooperation. [Extracted from the article]

Details

Language :
English
ISSN :
0031921X
Volume :
63
Issue :
2
Database :
Academic Search Index
Journal :
Physics Teacher
Publication Type :
Academic Journal
Accession number :
182477825
Full Text :
https://doi.org/10.1119/5.0233097