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 338
bove valuations areidentical. M. (a) Symbol of gaseous pressure equal to one-millionth of anatmosphere. STANDARD ELECTRICAL DICTIONARY. 333 (d) The Greek 1/1, /.i, is used as the symbol of magnetic permea-bility. Machine, Cylinder Electric. A frictional electric machinewhose rotating glass is in… … Fig. 217. Plate Frictional Electric Machine. It consists of a plate or cylinder of glass mounted on insulatingstandards and provided with a handle for turning it. One or morecushions of leather are held on an insulated support, so as to rubagainst the plate or cylinder as it is turned. A metal comb…
Electricity
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