The industries of the world; a complete course of technical education for the manufacturer, operative, and all persons engaged or interested in trade and commerce (1881)
Wylde, James · London, New York, The London Printing and Publishing Company, limited · leaf 277
253 VOLTAIC ELECTRICITY— THE GALVANOMETER. be employed, it is better first to attach the wire construction of the galvanometer may be ex¬ plained and illustrated as follows a, Fig. 163, to the cups whilst the plates are out of the acid water ; they may then be gradually lowered … water, and the wires be connected with the represents the needle suspended by a thread, 6, deflecting instrument, the needle will scarcely move. On adding a little sulphuric acid to from a pivot over it, within a glass shade, c, used to keep off currents of air. Over and under the water, and…
Industrial arts · Technology
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