Elementary treatise on electricity and magnetism (1903)
Foster, George Carey, 1835-1919, Joubert, Jules François, 1834-1910. Traité élémentaire d'électricité, Porter, Alfred William, 1863- joint author · London, New York, Longmans, Green, and co. · leaf 196
rrent, and of breadth rdd, at right angles to the current.If z is the thickness of the sheet and p its specific resistance, theresistance of this elementary portion may be taken as pdr zrcTeThe whole circular strip bounded by the two circles contains Itrjddsuch areas, which may be considered as… … 174 APPLICATIONS OF OHMS LAW [122- of radii ?*-|^ and r, differing by a finite amount, we require to in-tegrate this expression between the corresponding limits. Thusthe resistance of the belt is 27rz Z>2 ^:= /- log/J^ 0-3665 P- log„3. But (114) the difference of potentials between two…
Electricity · Magnetism
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