Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 439
, • • •, 2n. Eight coils in this series, for instance, give all resistancesbetween 1 and 255. 389. Verification of Ohms Law. E The law i = — may be verified within the limit of the errors of observation by eitherof the following methods:1st method. Fall ofpotential along a wire.Let B (Fig. 267) be… … Fig. 267. LIYLDEI) CIRCUIT. ic ; ■3 - at equal distances along the wire, to which may be attacheda secondary circuit- -ST. containing the potentiometer P.Writing Ohms Law in the form it appears that- as i is constant and the wire has a uniformcross section, the fall of potential depends only on the…
Physics
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