A laboratory course in experimental physics (1896)
Loudon, W. J. (William James), McLennan, John Cunningham, joint author · New York and London, Macmillan and Co. · leaf 261
of the current in each of the circuits ABCand ADC is the same throughout its length, that and v,- Vi- r*- ^ a X Vi- v*- v,- v, (I) (2) 246 EXPERIMENTAL PHYSICS. Dividing each member of (1) by the corresponding one of (2),we obtain the relation ax a If, therefore, the resistance of a or c, and… … Fig. 40. then giving a a certain value, and gradually increasing b, thatof x can be determined with a degree of accuracy which islimited only by the resistances available, and as already indi-cated by the sensitiveness of the galvanometer. A practical form of the bridge consists of a resistance…
Physics
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