Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 182
normal potential,and a replenisher to bring it back to its normal charge whenit has fallen below it. The gauge consists simply of an attracted disc electrometer,of which the attracted disc is in the cover plate, and theattracting disc is placed below and parallel with it, insulated,but in…
Electricity
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