Practical applied electricity; a book in plain English, for the practical man. Theory, practical applications and examples (1911)
Moreton, David Penn, 1882- · Chicago, The Reilly & Britton co · leaf 90
Fig. 40 A com- MAGNETISM 79 by the other. The same pole that attracts the north-pointingend of the magnetic needle repels the south-pointing end.As the needle and the magnet attract each other when unlikepoles are presented, and repel each other when like polesare presented, it follows that like…
Electrical engineering
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