The book The Elements of Dynamic Electricity And Magnetism was written by author Philip Atkinson Here you can read free online of The Elements of Dynamic Electricity And Magnetism book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Elements of Dynamic Electricity And Magnetism a good or bad book?
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Resistance is the oppo- ELECTRIC MEASUREMENT. 11$ site of conductivity, and very high resistance, when applied to a certain class of bodies, is termed insulation. Conductivity is that quality of a body which facilitates electric transmission, while resistance or insulation ob- structs it. Each varies inversely as the other, but there is no well-defined boundary between them; every con- ductor having a certain amount of resistance, and every insulator a certain amount of conductivity. Where cond...uctivity is found to predominate, as in the metals, the term conductor is applied, and where resistance pre- dominates, as in glass and vulcanite, the term insulator is applied. Silver and copper are metals of the highest conductivity and consequently of the lowest resistance. German-silver and bismuth have high resistance and hence low conductivity. Glass and vulcanite have high insulation and correspondingly low conductivity, so low that the term conductor is never applied to them, nor is the term insulator ever applied to silver or copper.
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