Lessons in practical electricity; principles, experiments, and arithmetical problems; over four hundred illustrations; an elementary text book (1909)
Swoope, C. Walton (Coates Walton), d. 1901 · New York, D. Van Nostrand company · leaf 474
ncreases with the square of the current. Also notethat this curve is altogether above the horizontal line, since insquaring the negative values of the current we multiply two nega-tive quantities together, giving us a positive quantity. Coming back to the question what constitutes the value of… … Fig. *It makes no difference what scale is used in doing this, as long as we use thesame scale in the laying off of the other points, as the object is merely to show howthe heating varies. 456 PRACTICAL ELECTRICITY. lines. This will give us a fairly correct value of the average lengthof all the…
Electricity · Magnetism
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