Laboratory exercises in physics for secondary schools (1902)
Twiss, George Ransom, b. 1863 · New York, London, The Macmillan company · leaf 148
Fig. 31a.—Wheatstones Slide-wire Bridge. stone slide-wire bridge, shown in Fig. 31 a and b ;one or two cells of battery Ba, in series ; the wires MAGNETISM AND ELECTRICITY 119 whose resistances and dimensions are to be deter-mined, and a known resistance, to be used as a stand-ard. Two pairs of… … L3 L4 Fig. 316. — Simple form of Slide-wire Bridge, showing connections. ing the battery and the galvanometer with the bridge.The resistances of the heavy copper conductors arenegligible, except where extreme accuracy is sought.The wire is of uniform sectional area, just a meterlong,* and stretched…
Physics
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