The outlines of physics: an elementary text-book . ric charge, A (Fig. 183), corre-sponding to the disk of the electrophorus, is brought nearto a charged body, B, corresponding to the vulcanite plate. (2) The carrier having become charged by induction,the repelled charge is carried away by momentary contactwith a conducting body (Fig. 184). 230 THE OUTLINES OF PHYSICS (3) The carrier is made to deliver its remaining positivecharge in part to a second charged body, B (Fig. 186),and in part to a storage reservoir L (Fig. 186). (4) The second body, B, subsequently induces a nega-tive charge upon
The outlines of physics: an elementary text-book . ric charge, A (Fig. 183), corre-sponding to the disk of the electrophorus, is brought nearto a charged body, B, corresponding to the vulcanite plate. (2) The carrier having become charged by induction,the repelled charge is carried away by momentary contactwith a conducting body (Fig. 184). 230 THE OUTLINES OF PHYSICS (3) The carrier is made to deliver its remaining positivecharge in part to a second charged body, B (Fig. 186),and in part to a storage reservoir L (Fig. 186). (4) The second body, B, subsequently induces a nega-tive charge upon A, which is transferred by a similar setof operations in part to B, increasing its original charge,and in part to another storage reservoir. This processis continued indefinitely, until the insulators which sepa-rate the stored charges become inadequate, and dischargetakes place. 206. The Toepler-Holtz Machine. — The manner in whichthis cycle of operations is performed may be convenientlystudied by means of the Toepler-Holtz machine (Fig. 187).. Fig. 187. This apparatus consists of two vertical glass disks, oneof which is stationary while the other revolves in front ofit. Upon the back of the stationary plate are two piecesof tin foil, B, B (Fig. 188). These correspond to thecharged bodies B and B, mentioned in the precedingarticle. Upon the front of the revolving plate are a setof equidistant metallic carriers, each consisting of a small C0NDUCT0M8 AND N0N-C0NDUCT0B8 231 disk of foil surmounted by a brass button (Fig. 189).Each of these disks corresponds to the carrier, A, describedin Art. 205. Imagine the revolving plate mounted in front
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Keywords: ., bookcentury1800, bookdecade1890, bookpublishe, booksubjectphysics
