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 486
and the vapor condenses in the upper part ofthe tube. In the most common size used for charging storage batteriesthe glass tube will carry a current of from 5 to 30 amperes.The voltage drop across the tube is always about 14 volts.The combined efficiency of the transformer and tubes rangesfrom 80…
Electricity · Magnetism
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