Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 257
ry bytaking two equal cells, and afterdetermining their resistances care-fully (to see that they are nearlyequal), fit them up in simple circuit,and it will be found that the resist-ance of the battery so formed willbe half that of a single cell. We learn that the resistances ofwires of the same… … =px length sectional area where p depends only on the material, and is called its specificresistance. If we make the length and sectional area eachunity, the resistance will then be simply p, the specific re-sistance. We may therefore define the specific resistance ofany material as the resistance…
Electricity
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