Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1903)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 160
B then the area will havejoint resistance equal to one-A and B == 10 ohms each; With three equal re- joint resistance = % of 10 or 5 ohms sistances in parallel the joint resistance will be ~ the value ofone of the resistances. To Find the Joint Resist-ance of any Number ofEqual Resistances… … -Two Unequal Resistancesin Parallel. R.=^ nq (43). To Find the Number of Equal Resistances Connected inParallel (nq) When the Joint Resistance (J. R.) andValue of a Single Resistance (R) Are Known : Divide the value of a single resistance by the joint resistance. R J. R * Thus, nq = (44) 142 PR A…
Electricity · Magnetism
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