Lessons in practical electricity; principles, experiments, and arithmetical problems, an elementary text-book (1902)
Swoope, Coates Walton. [from old catalog] · New York, D. Van Nostrand company · leaf 160
ls thatof B then the area will havejoint resistance equal to one-A and B = 10 ohms each; joint resistance = ^ of 10 or 5 ohms. With three equal re-sistances in parallel the joint resistance will be q the value ofone of the resistances. To Find the Joint Resist-ance OF ANY Number ofEqual Resistances… … Fig. 116.—Two Unequal Resistancesin Parallel. Then, J. R. = 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. Thus, R^^^=…
Electricity · Magnetism
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