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 954
fig. 911, fits closely on the outside of the brass tube.Pig. 911 shows the relative positions of the iron needle AB, and the ironcollar CD, when the index points to zero of the scale, that is, when nocurrent is passing. When a current flows round a coil, the needle is pulledround magnetically, so… … uV> Fig. gi2From Ayito?is Practical liLxtricity graduated empirically. Ammeters with gravity control must be rigidly fixed,and are generally secured to a vertical wall. In instruments to be used onboard ship a spring control is substituted. An ammeter, devised by Professors Ayrton and Perry,…
Physics
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