Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 332
re. By using one ELECTRICAL MEASURING INSTRUMENTS 333 or the other of the three leads of the stretched wire, orby using two or three of them simultaneously, all sortsof proportions between the parts.to right and left of Rcan be brought about. The known and unknown resist-ance represent the other… … Fig. 159. Potentiometer Connections. The Potentiometer is an apparatus for measurementof resistances, current strength and potential differences.It has acquired in late years most extensive application.Modern electric measurement practice tends, or shouldtend in the direction of null methods. The…
Electricity
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