Electricity experimentally and practically applied; a book for the beginner and for the practical man, principles, experiments, practical applications and problems (1910)
Ashe, Sydney Whitmore · New York, D. Van Nostrand company · leaf 362
FlG. 421. — Weston Projecting Instruments. throw double-pole switch is usually arranged so that the galvanometerterminals come to the middle of the switch ; the switch when thrownin one direction indicates volts, and when thrown in the other directionindicates amperes. For speed measurements a… … FlG. 422 — Combination Board used with Projecting Galvanometer. ter is belted to the apparatus under test, and the magneto terminalsare wired to the galvanometer with resistance in the circuit. Thisresistance is varied until a uniform relation is obtained between speed APPENDIX 341 and deflection.…
Electricity · Electrical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer03inte-153-92.webp)
