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 517
Fig. 324. — Flame arcmade with impregnatedcarbons beneath a vit-reous canopy. 462 ELECTRICITY AND MAGNETISM To- … Magnetite, etc. Fig. 325. — Luminous arc lamp with copper electrodeand diagram of connections. Unlike other arc lamps, this luminous arc lamp (Fig. 325), as itis sometimes called, is not adapted to interior use on constant-voltage circuits, Starting Resistance V^i but is USed for street lighting…
Electricity · Magnetism
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