Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 171
of the jar to be ex-perimented with a self-discharging arrangement, such as Fig.100, where the distance between the knobs A and B connectedwith the inner and outer coats can be varied and measured bythe sliding rod, which is graduated. If now, by the arrange-ment of Fig. 99, we charge the Leyden… … Fig. 100. the air space, we shall find that we have to double the num-ber of units admitted before discharge takes place, and so on.In making the experiment, the Leyden jar must be completelydischarged after each experiment, as the passage of a sparkacross a considerable air space by no means…
Electricity
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