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 94
eir magnetism permanently. It is harder to get the magnetism into steel than intoiron, and it is harder to get the magnetism out of steel thanout of iron, because steel resists magnetization or demagneti-zation to a greater extent than soft iron. This power of resist-ing magnetization or… … Pig. 49 substance, since any disturbance of the molecules causes achange in the degree of magnetization. If a test tube fullof hard steel filings be magnetized, it will behave toward acompass needle or other magnet as though it were a solidbar magnet, but it will lose practically all of its…
Electrical engineering
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