Elementary treatise on physics, experimental and applied : for the use of colleges and schools (1906)
Ganot, A. (Adolphe), 1804-1887, Atkinson, Edmund, 1831-1901, Reinold, A. W. (Arnold William), 1843-1921 · New York : Wood · leaf 884
half a degree in reading theangle gives rise to a relatively largeerror in the value of the current. When the instrument has beenlevelled, the coils, being movableabout a vertical axis, are turned untilthey are parallel to the needle, thatis, until each is in the magneticmeridian. If the ring of… … Fig. 826 -838] Si77e Galvanometer 859 of the angle ^, through which the ring is turned. Hence by increasing 6we may make the action of any current on the needle as small aswe please, and thus very powerful currents may be measured by thisinstrument. 838. Sine galvanometer.—This is another form of…
Physics
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