Electricity for everybody; its nature and uses explained (1895)
Atkinson, Philip · New York, The Century Co. · leaf 185
. 169 that it loosens its grip on the brass rod, which slips downthrough it, bringing the carbons closer together. Thisrenews the volume of current in the main circuit, and themagnetism, so quick that the descent of the upper carbonis stopped when the distance between the carbons is suf-ficiently… … Pig. 72. D If the lamp is accidentally extinguished, the supply ofcurrent in the main circuit being thus interrupted, themagnetic action is so weakened that the upper carbondrops into contact with the lower one, renewing the maincurrent and magnetism instantly and relighting the lamp. The loose…
Electricity
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