A laboratory manual in physics, to accompany Black and Davis' "Practical physics for secondary schools," (1913)
Black, Newton Henry, 1874- [from old catalog] · New York, The Macmillan company · leaf 81
amp.). high resistance galva- 1-meter high-resistance wire nometer. stretched along a meter stick. Variable rheostat. Storage battery (3 cells) orother source of steady cur-rent, such as Daniell cells. I. Potential Difference across Equal Resistances. Connectone meter of high resistance wire in… … Fig. 41 at the end marked 0 and adjust the resistance so that the cur-rent is one ampere. Touch the + terminal of a low readingvoltmeter (F) to the 0 terminal of the wire and touch theother terminal firmly against the wire at a point just 10 cm.from the 0 terminal. Read carefully the voltmeter…
Physics
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