Advanced laboratory practice in electricity and magnetism (1922)
Terry, Earle Melvin, 1879-1929 · New York, McGraw-Hill · leaf 80
ing mainly of mercurous sul-phate , is placed over the mercury. Asthe cell operates, the cadmium ionsfrom the CdS04 solution displacesome of the ions from the mercuroussulphate paste and mercury is de-posited upon the mercury electrode. One of the advantages of this cell over former types is that… … Fig. 33.—Weston standard cell. Ec = E20 - 0.0000406 (t - 20° C). (9) That is, the E.M.F. decreases 0.0000406 volt for each degree thetemperature is raised above 20° C, and increases by thesame amount for each degree below 20° C. This quantity iscalled the temperature coefficient. Since standard…
Electricity · Magnetism
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