Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 520
ve proportion. 451. The Slide-Wire Bridge. In practice it is convenient tomake one brancli of the circuit, as ADC, Fig. 265, of a straight,unifonn wire, upon which the point of contact D may move backand forth. The resistance to be measured is introduced at r,, anda known resistance from a… … ll U l2 Fig. 2G5. Tlie slide-wine bridge. may be read at once from a scale underneath. Since in the aboveproportion we require simply the ratio r. : r„ we may write,accordingly, r, : r, = l^ : l_. In operating this bridge, therefore, the wire from one terminalof the galvanometer is connected at…
Physics
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