Poynting, J. H. (John Henry), 1852-1914, Shakespear, Gilbert Arden, ed, Barlow, Guy, joint ed · Cambridge, University Press · leaf 274
ilibrium when no current passes is Wa = wb (1) If now a current G passes, the down pull of the core is lessened and thearm falls into a position in which the bob has a less moment. If it moves through an angle 6, {W - KG^) a = wb cos 6 (2) 238 ON A FOBM OF SOLENOID-GALVAiSTOMETEH Substituting from… … Fig. 1. ON A FORM OF SOLENOID-GALVANOMETER 239 It is very easy to construct an arc divided to give readings proportional to sin 2 as follows :—Describe a quadrant, and mark off points on it with ordinates increasing by equal amounts. On the radius from which theseordinates are measured describe a…
Poynting, J. H. (John Henry), 1852-1914 · Physics
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