American telegraphy and encyclopedia of the telegraph; systems, apparatus, operation (1909)
Maver, William, jr. [from old catalog] · New York, Maver publishing company · leaf 176
. That such is the case will beobvious on considering that w is onehalf of L.These formulae may be reasoned out, aided by Fig. 122, as follows : Assum-ing that the resistance of the loop as first measured is 30 ohms, the resistance ofeach wire will be 15 ohms. Assume also that it was necessary to… … fault f and the junction j of w with w. Therefore, it is plain that as much as hasbeen added to w has been subtracted from w. Hence, in obtaining a balance itmust have been necessary to insert in r a resistance equal to the sum of thatwhich has been added to w and subtracted from w. In otlier…
Telegraph
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