Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 92
ERIMENTS. Tt CHAP. XXII -THE MEASUREMENT OF RESISTANCE. It is very often desirable to measure the resistance of variouspieces of electrical apparatus, such as coils, and wires of vari-ous kinds. It is not at all difficult to construct a piece of appa-ratus which is capable of measuring resistances… … 22 German silver or iron wire about a yard long, an ordinarywooden yardstick, a strip of brass or copper 4 feet long, J4inch wide, and at least 1-32 of an inch in thickness, and five or-dinary binding posts. Cut the board to the dimensions given above, and smooth itoff nicely with sand-paper. It is…
Electric apparatus and appliances · Electricity
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