Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 525
ion of the needle will be /o g^ produced. But if the points D and G be at the same potential, there will be no cross current through the bridge wire and no deflection. Now it can be demonstrated that points D and G will be at the same potential when R (the re- 1 The student will find descriptions… … /g;^=3a WHBATSTONE BRIDGE. 505 sistance) of AIJ : Tl of D B:: R of A G : R (the unknown resistance)of 6 B. Between A and D and A and G there are three coils ofwire having resistances respectively of 1, 10, and 100 ohms. One ormore of these coils are introduced into the circuit tiy removing…
Physics
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