ctrometer is shown in Fig. 46. Four brass INSTRUMENTS. 97 quadrants are arranged as shown in a horizontal plane.Small air gaps are left between them, and the alternatequadrants are in electrical connection. Just above thequadrants is a centrally suspended vane of thin alumi-num, shaped as shown.… … Fig. 46. of quadrants and the vane are kept at one potential and theother pair at some other potential, usually that of the earth.The first pair will repel the vane and the second attractit, owing to the arrangement of the charges, and the angu-lar displacement may be made a measure of the…
Electronics · Electricity
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