Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 238
. „ B and D . • 28 „ B and E . . 52 „ jBandi^ .. . 87 The numbers 9, 28, 52, 87 are sufficiently nearly in theratios of 100, 300, 600, 1000 to suggest to us the rule thatthe fall in potential is simply proportional to the resistance. If now we set off on a horizontal line distances propor-tional to… … Fig. 135. proportional to the observed potential differences, the extremi-ties of these ordinates will be in a straight line, and thatstraight line may be taken as giving graphically the potentialgradient in the conductor. The potential at any point may befound by simply drawing a perpendicular to…
Electricity
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