An elementary book on electricity and magnetism and their applications (1919)
Jackson, Dugald C. (Dugald Caleb), 1865-1951, Jackson, John Price, b. 1868, Black, Newton Henry, b. 1874 · New York, The Macmillian Co · leaf 541
Fig. 338. Electric toaster with exposedheater wires. … Fig. 339. — Electric flatiron showing embedded heating coils. lating powder in a steel tube or sheath about 0.125 inches indiameter. When the electric current passes through the corewire, the latter becomes red hot and the heat immediately passesthrough the insulating material to the outside…
Electricity · Magnetism
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