Elementary treatise on electricity and magnetism : (1905)
Foster, G. C. (George Carey), 1835-1919, Joubert, J. (Jules François), 1834-1910, Porter, Alfred W. (Alfred William), 1863-1939 · London ; New York ; Bombay : Longmans, Green, and Co. · leaf 75
t its own distance, ?•, from the point, and determining the value of the integral /—— for the whole. As a special case, suppose a quantity of positive electricity, Q,concentrated at a point, a (Fig. 26), and a quantity Q at a ; the 37] EQUIPOTENTIAL SURFACES 51 potential at any point, p, whose… … Fig. 26. abovit the line aa as an axis, and Fig. 26 represents a section bya plane through the axis of a system of equipotential surfacescorresponding to the values Cl= +20 and (X — —5, the potentialsof consecutive sur-faces differing byunity from eachother. The surfacegiven by the equa-tion r r
Electricity · Magnetism
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