h which passes a metallic rodterminating upwards in a brass knob, and 1 connecting, by means of a wire or chain at the other end, with the inside coating of% the jar. When the jar is charged, the two electricities are held on the opposite sidesof the glass by their mutual attraction—the metallic… … ELECTRICAL DISCHARGES. 163 charge, a residual charge of-j^ of the quantity originally accu-mulated. In passing from one coat to the other of the jar,electricity travels at the rate of 28a000 miles a second. Note.—lu the above figure of the Leydeu jar, the tin-foil on both sidesreaches as high a^…
Physics
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