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 33
o indicate thestrength of current. The bar is drawn into the coil to different ex-tents proportional to the attraction. As an example see Ammeter\Ayrtons, and cut of Gravity Ammeter* Ammeter, Spring. An ammeter in which the part moved bythe current is controlled or brought to the zero position by a… … Fig. 12. Steel Yard Ammeter. noid coil and attracts or draws downwards the core. A slidingweight is moved in and out on the long steel-yard arm which isgraduated for amperes. In use the weight is slid out until thearm is in equipose ; the divisions give the amperes. STANDARD ELECTRICAL DICTIONARY.…
Electricity
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