Measuring the Earth's magnetic field in a laboratory

Two methods for measuring the Earth's magnetic field are described. In the former, according to Gauss, the Earth's magnetic field is compared with that of a permanent magnet; in the latter, a well-known method, the comparison is made with the magnetic field generated by a current. As all t...

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Bibliographic Details
Published in:Physics education 2008-07, Vol.43 (4), p.412-416, Article 412
Main Authors: Cartacci, A, Straulino, S
Format: Article
Language:English
Subjects:
Earth
Energy
Laboratory Experiments
Magnetic fields
Magnets
Measurement methods
Measurement Techniques
Measuring instruments
Physics
Science Instruction
Secondary School Science
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Summary:Two methods for measuring the Earth's magnetic field are described. In the former, according to Gauss, the Earth's magnetic field is compared with that of a permanent magnet; in the latter, a well-known method, the comparison is made with the magnetic field generated by a current. As all the used instruments are available off the shelf, both methods are cheap. With some attention to the procedure, both methods give accurate results. (Contains 7 figures, 1 table and 2 footnotes.)
ISSN:0031-9120
1361-6552
DOI:10.1088/0031-9120/43/4/010