Snow, Benjamin Warner, 1860- · Madison, Wis. · leaf 379
roscope positively, we firstbring near the instrument a negatively charged body, such asan electrified rub])er rod. Fig. 209. This will repel to the gold- 374 ELECTROSTATIC INDUCTION. leaves the free electrons Avliieh are present in the knob and con-necting rod, leaving the knob charged positively,… … Fig. 209. The gold-leaf electroscope charged by induction. part of the system, leaving the leaves entirely neutral, andcharging the knob still more strongly positively, thus formingthe second case. If the connection with the earth is now brokenand the rubber rod then removed, the knob, the rod, and…
Physics
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