The standard electrical dictionary; a popular dictionary of words, terms, and phrases, used in the practice of electrical engineering (1897)
Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, H. W. Henley & co. · leaf 235
aterial i?, such as resin or gutta percha,which is held in a shallow metal-lined box or form. The disc maybe half an inch thick and a foot or more in diameter, or may bemuch smaller and thinner. A metal disc A, smaller in diameter isprovided with an insulating handle which may be of glass, or… … Fig. 159. Electrophorous. latter disc or cake projects on all sides. Owing to roughness thereis little real electric contact between the metal and dielectric. Ontouching the metal disc a quantity of negative electricity escapesto the earth. On raising it from the cake it comes off excited STANDARD…
Electricity
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