Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 196
ob.69, tan d-= 1.1918. 189. Thomson Mirror-ReflectingGalvanometer.— In this type of instrument, Figs. 161 and162, great sensibility has been attained bybringing thecoil as closeto the needleas possible!and windingit with manyturns of veryfine wire.On the back Fig 162«—Details ortne Coil. of a small… … Fig. 161.—Thomson Mirror-Reflecting Galvanometer(single coil).
Electricity · Magnetism
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
