Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 882
ted to the bottomrow by a heavy copper bar joining the right-hand blocks. Thisconnection is made very heavy so as to interpose no extra resistancein the rheostat. On the rheostat formed by the upper and lowerrows of blocks any resistance from i to 11,110 ohms may be obtained,the resistance being… … FIG. 628,—PLAN OF PORTABLE TESTING SET. C, forming, the other terminal of the unknown resistance, is con-nected to block, X, which block is also joined to the galvanometerkey. The block, R, is connected to the upper left-hand block ofthe rheostat. The end blocks of the middle row are connected…
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