Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 968
gement by which a disc of carbon forming part of a voltaiccircuit is exposed to varying pressure. It depends on the fact that theresistance of carbon varies very greatly with the pressure to which it isexposed. It consists of an iron base, on which are two rigid supports (fig.923), one of which, a^… … Fig. 923. surface of which is a strip of platinum in metallic connection with one poleof an element, /. The disc of carbon is closed in the cavity by a metalplug, f, in which is a cavity. There is a similar plug, ^, with a correspond-ing cavity at the end of a screw, b, which works in the upright…
Physics
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