AbstractsPhysics

"This thesis was undertaken to make a study of the resistance of coke, gas-carbon, and kryptol when used as resistors in the electric resistance furnace, which daily is becoming of increasing industrial importance. It would appear at first sight that the calculation and design of an electric resistance furnace would be an extremely simple problem, since the whole effect is the change of electrical energy into heat according to Joule's Law; but this is by no means the case, as the resistance of the resistor may change enormously during the run of the furnace. The great difficulty met with is the lack of data on which to base the calculations. To find the causes and amount of change in the resistance of the material, and to add to the present available data on this line was the object sought for in this thesis" – Object, p. [3].