journaled an upright ness is proportional to the intensity of the field, and shaft, which passes inside of the tube and is rotated inversely proportional to the thickness of the column by means of a crankor pulley. Upon the lower end of mercury. It is in order to obtain great sensitiveness of the… … the latter will be traversed by acontinuous circuit that Fig. 1—LIPPMANN’S AMPEREMETER, will last as long as the flow of the mercury does. It is a true unipolar machine, that might perhaps velops a inagnetic field whose lines of force are directed strong upward currents in the liquid when the shaft…
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