Laboratory exercises in physics for secondary schools (1902)
Twiss, George Ransom, b. 1863 · New York, London, The Macmillan company · leaf 141
Fig. 26. — Astatic Galvano-meter. 112 LABORATORY EXERCISES IN PHYSICS … Fig. 27. —Tangent Gal-vanometer. the zero marks are exactly under the ends of thepointer. In order to be adapted to cur-rents of different strengths, tan-gent galvanometers frequentlyhave two or more coils on thesame reel. If there are threecoils, there will be four binding-posts. If the two posts…
Physics
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