Meadowcroft, Wm. H. (William Henry), b. 1853 · New York & London, Harper & brothers · leaf 119
edrawn up out of the solu-tion when it is not desiredto use the battery. Whenthe zinc is in the solutionthere is a steady and con-tinuous current of electricity developed, whichcan be taken away by wires from the con-nections on top of the battery. If the zinc were left in the solution whenthe… … Fig. 30 BATTERIES tion could be had when we wanted moreelectricity. Now, in the Grenet battery we can lighta lamp or run a motor for several hours con-tinuously, but at the end of that time thesolution would become black and it woulddo no more work. Then we must throw outthat solution and put in…
Electricity
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