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 441
ht and feet per minute. Proof=plane. A small conductor, usually disc shaped, carriedat the end of an insulating handle. It is used to collect electricityby contact, from objects electrostatically charged. The charge ithas received is then measured (see Torsion Balance) or otherwisetested. (See… … Fig. 275. Box Bridge. Proportionate Arms. In general terms the arms of a Wheat-stone bridge whose proportion has to be known to complete the STANDARD ELECTRICAL DICTIONARY. 437 measurement. There is a different system of naming them. Somedesignate by this title the two arms in parallel with each…
Electricity
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