Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 169
ntigrade. There are several other forms of cells used as standards, oneof the most reliable being the Carhart-Clark cell, which is illus-trated in Fig. 27. Above a layer of mercury in the bottom of thecell is the mercurous sulphate and zinc sulphate solution. A pieceof cork separates this from a… … with the mercury in tlie bottom of the cell by a platinum wire pass-ing down through a small glass tube. The E. ^L F. of tliis cell atlo° C. is 1.442 volts, the E. M. F. at other temperatures beinggiven by the formula U = 1.442 j 1 _ .00039 (« — lo) } In the figure a Centigrade thermometer is shown…
Electrical engineering
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