Notes on electricity and magnetism. designed as a companion to Silvanus P. Thompson's Elementary lessons (1891)
Murdock, J. B. (Joseph Ballard), 1851-1931, Thomson, Silvanus Phillips, 1851-1916 · New York, Macmillan & Co. · leaf 78
ntsin the two branches are therefore unequal. Beginnersare liable to regard the balance in Wheatstones Bridge asdue to an equality of currents ; but this is wrong, theequality of potentials at the galvanometer terminals beingthe condition of balance. This is equivalent to saying thatthere is no… … Fig. 18 c, Ci, ci, etc., and the corresponding resistances by r, rit ra,5 66 NOTES ON etc. Let £be the E. M. F. and b the resistance of the battery.From the first law At A c2 = c3 + cb (i) B c = c3 + c, (2) C ct = cx + a (3) D c = r2 + cx (4) By the i In ABC, cs ra — ct rt — rs G = 0 . . . . (5)…
Electricity · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
