Specific heat of copper in the interval 0° and 50°, with a note on vacuum-jacketed calorimeters (1915)
National Bureau of Standards · leaf 45
assumed to be ab-solutely equal). R^+a^Tt+b+s. Commutator reversed to 2;battery switch on 2; variablearm adjusted to balance, nowreading R2. Rt+iQ+b=Ts+a+s. Add the two equations,53and a, b, the lead resistancesare eliminated. Fig. 6.—Wheatstone bridge connections for double Siemens type resistance… … COMMUTATOR TERY SWITCH and reading the zero balance of the bridge 0: Z1+Z2 -trj-e, orjj-e= Z1+Z2 Harper) Specific Heat of Copper 297 The value of T being desired at a given minute, the balance Rxwas obtained about 10 seconds before this, and R2 about 10seconds after the minute. The assumptions made…
Specific heat and latent heat · Heat flow, thermal and thermodynamic processes
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