A laboratory manual in physics, to accompany Black and Davis' "Practical physics for secondary schools," (1913)
Black, Newton Henry, 1874- [from old catalog] · New York, The Macmillan company · leaf 78
vanometer (Fig. 37), which consistsessentially of a horseshoe steel magnetwith a coil of many turns of fine copperwire hung between the poles. The coilis suspended so that the plane of the coilis parallel to the line joining the poles,but when a current, even a very slightcurrent, is sent through… … JFig. 37 64 LABORATORY MANUAL
Physics
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