Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 237
four Darnells cells(.4, Fig. 134), and introduce a set of resistances, of 100,200, 300, 400 ohms respectively between the terminalsBF. Also connect B with one terminal of a quadrantelectrometer, the other terminal being connected with a 2l8 Electricity. [Book III. loose wire, which can be applied… … Fig. 134. Taking a particular experiment, the number of scaledegrees read off from the screen were— For^andC .. 9 scale divisions. „ 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…
Electricity
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