International Library of Technology · Scranton, International Textbook Co. · leaf 204
f a n is to the resistance of c in asthe resistance of n b is to the resistance of in d. From this proportion, it is evident that if a ii, c in, and in dbe known, the resistance of ii b may be readily calculated. This affords a ready means for measuring resistance,which, as will be shown, is very… … branch a c b oi the circuit from a to b. Through this circuita current flows from the battery B. Any one of the threeresistances M, N, and P may be adjusted until the galva-nometer G indicates that the points c and d are at the samepotential; then, from the proportion given in Art. 2509,M:N.:X:P.…
Electrical engineering
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