Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 226
. II.] Electrolysis. 207 138. Polarisation of Electrodes.—After passing acurrent between electrodes, we find a backward E.M.F. whichis called Polarisation. To exhibit it, arrange (Fig. 129) a battery(A) and a voltameter (B) in one branch of a contact breaker (C),and the same voltameter with a… … Fig. 129. battery is excluded, and the galvanometer included. Amercury cup may be substituted for the contact breaker,putting in the battery and galvanometer wires alternately. After passing the current for a short time with evolutionof gas in the voltameter, turn the contact breaker; a currentwill…
Electricity
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