Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 19
h^;.,..^yj^^mmiri^^^^^^^ … Fig. 3. Fig. 4. Magnetic Field. The space surrounding a magnet, calledthe field, is subject to the influence of the magnet and is called itsmagnetic field. The piesence of such a field may be shown by asimple experiment. Suppose a sheet of paper be placed upon a bar magnetand iron filings spread…
Electrical engineering
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