. The principles of physics. the specific inductive capacity of the. dielectric; and (3) is inversely proportional to tlie thickness of the dielectric. 1 So called because one of the first jars was constructed (by Ouneus) at Leyden,Holland (1746). The original discovery was, however, made a year earlier by Kleistof Pomerania. He happened to touch a charged conductor of an electrical machinewith a nail protruding from a bottle containing water. On removing the bottle andattempting to remove the nail from the bottle he received a violent shock. Hishand on the outside of the bottle and the water
. The principles of physics. the specific inductive capacity of the. dielectric; and (3) is inversely proportional to tlie thickness of the dielectric. 1 So called because one of the first jars was constructed (by Ouneus) at Leyden,Holland (1746). The original discovery was, however, made a year earlier by Kleistof Pomerania. He happened to touch a charged conductor of an electrical machinewith a nail protruding from a bottle containing water. On removing the bottle andattempting to remove the nail from the bottle he received a violent shock. Hishand on the outside of the bottle and the water on the inside undoubtedly answeredthe purpose of coatings. CONDITION OF THE DIELECTRIC. 457 The low inductive capacity of some kinds of glass renders itentirely unsuitable for this purpose. To secure greater capacity than a single jar of ordinarycapacity will afford, several jars, constituting a battery ofjars (Fig. 353), are placed upon a sheet of tin-foil so as toconnect all the outer coatings, while the inner coatings are. Fig. 353. connected by a wire joining their projecting rods. The sev-eral jars are by this means practically converted into onelarge jar. 422. Condition of the dielectric. Seat of charge. — Thatinductive action is attributable to the dielectric, and not tothe conductor, is shown by the Leyden jar with movablecoatings (A, Fig. 354). B is the dielectric; G is the outer andD the inner conductor. The several parts, being put together,the jar is charged in the usual manner and placed upon aninsulator. Then the inner conductor, D, is raised by a glassrod out of the jar, and afterwards the glass vessel, B, isremoved from the outer coating. The several parts are nowtested with an electroscope. The coatings produce little orno disturbance of the leaves; the glass causes a divergence of 458 ETHBK DYNAMICS. the leaves. On putting the parts together again and dis-charging in the usual way, there will be nearly as brilliant aspark as if the charged jar had not been d
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectphysics, bookyear1895
