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 891
gether. -843] Ballistic and Dead-beat Galvanometers 86s The needles are formed of cylinders of steel, about 3 or 4 mm. long, roundedat one end and saw-cut at the other, so as to form a sort of horseshoe withopposite poles on the two sides of the cut. Four of these are attached toan aluminium rod in… … Fig- 833 two controlling magnets placed at the side, the period of the needle can bealtered within wide limits ; it usually is from 5 to 10 seconds. An ammeter, or ampere-meter, is a galvanometer in which the strengthof the current is read off directly in amperes. Ammeters are constructed on\arious…
Physics
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