Allen, Charles Ricketson, 1862- [from old catalog] · New York, H. Holt and company · leaf 54
requiredto produce the same deflection of the galvanometer. Wewill use the apparatus indicated in Fig. 28. The board A carries two uprights, BB, which support ameter-stick, M. Stretched between these upright, is a pieceof uncovered German-silver wire, on which slides a hookmade of the end of one… … sets of wires. When the circuit is completed from thebinding-post a, through the wire and the hook that slideson it, the length of wire in the circuit will be determinedby the length of wire between a and the hook, as read onthe meter-stick, and can be varied by sliding the hook alongthe wire, so…
Physics
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