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 843
Fig. 782 Vh- 783 by .observing the reflection of this pointer in a piece of looking-glass, _^,fixed to the base of the instrument. Any difference of potential set upbetween the needle and the inductors is measured by turning the torsionhead H until the pointer p is brought into the same position it…
Physics
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