Dynamo-electricity: its generation, application, transmission, storage and measurement (1884)
Prescott, George B. (George Bartlett), 1830-1894 · New York, D. Appleton · leaf 818
may beheld, and, the pivot resting in jewels top and bottom, the fric-tion is also practically unaltered by turning the instrament onits side or holding it upright. The needle is placed betweenthe poles of a large compound magnet, which is so strong thatthe ammeter may be placed not very far from… … Fig, 505. its base, which may be added to the circuit by the removal ofthe plug shown in the cut. The high grade of sensibility is generally only used for thepurpose of calibrating the instrument, but it is very convenientfor measuring the comparatively small currents of 0.5 to 2amperes used with…
Electrical engineering
Internet Archive · Northeastern University Library · Public Domain Mark 1.0. Free to use for anything.
