Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 136
ction with the earth in such a position that a Chap. III.] Electrical Induction. 117 small metal weight, suspended by a silk thread may strikefirst one bell and then the other, the motion being kept upby the successive attractions and repulsions between themetal and either bell. This arrangement… … Fig. 79. B be connected with an electroscope. Touch B with the finger,bringing its potential to zero. Take now a plate of solidparaffin larger than the plates, and whose thickness is a littleless than the distance between the plates. On carefully introducing it between the plates without contact…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
