Elementary lessons in electricity and magnetism (1906)
Thompson, Silvanus P. (Silvanus Phillips), 1851-1916, Schwetzky, Otto H. L. [from old catalog] · Chicago, Thompson & Thomas · leaf 355
wire joined to twostout conductors is enclosedwithin a glass vessel con-taining alcohol, into whichalso a thermometer dips.The resistance of the wirebeing known, its relation tothe other resistances canbe calculated. Joule foundthat f/ie mimbej of tintts of heat developed in a con-ducto7 is… … Fig. 136. 330 ELEMENTARY LESSONS ON [cHAt>. viL H = CRt X 0-24where C is the current in amperes, R the resistance inohms, / the time in seconds, and H the heat in the usualunit af heat-quantities, viz. the amount of heat that willraise i gramme of water through I^C of temperature(Art. 2 55).…
Electricity · Magnetism
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