Sloane, T. O'Conor (Thomas O'Conor), 1851-1940 · New York, N. W. Henley & co. · leaf 44
sistance of the section is ^ X 1.6= .021 ohms. Arranging all these data upon adiagram we have the full presentation of the calcu-lation in brief as below: iPjLfJ>Amp A _ /0<*/r£Af9*s „_M\ 4rrvey»f. IT * (rrviyod. CHAPTER V. CIRCULAR MILS. A mil is ttAto of an inch. The area of a circle,one… … circular mil is .7854 square mil. Rules for the sizesof wires for given resistances are often based on cir-cular mils, and include a constant for the conduc-tivity of copper. By the table of specific resistances,the values found can be reduced to wires of iron orother metals. 44 ARITHMETIC OF…
Electricity
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