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 201
l lines of potentials, 178 APPLICATIONS OF OHMS LAW [125- C/j and C7., respectively : we can deduce the resistance of thisportion of the sheet to the current through it from the formula derived from Ohms Law. For TJ. we may write -^ log^ -L, and -^ log^ -? for U„, so that 27r,s ?j 2irz r„ the… … Fig. 119. considered meet each other at the electrodes, is to Itt. That is e C = Q^r-: hence ^ = £ If we have to deal with the whole space between two completeequipotential lines, we have 0 = iir and therefore 0=0,, andconsequently log. J^. Fig. 119 shows the lines of flow and the equipotential…
Electricity · Magnetism
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