Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 108
red by the extended wire and the handle which carries the oootact potat on tbe wiremay be manipulated rapidly so that a fluctuating voltage may be aoctnatdy followed.When used with any cadmium cell, the pipteniiometer is direct reading. The accuracy ofthe potentiometer resistances can be voified… … -Ba. Fig. 611.—Diagram showing connections of Leeds and Northrup potentiometer. The coils inthe series AD are each o ohms, and between each two there is a brass block with a reamedhole. A pair of flexible cords with taper plug terminals to fit these holes is furnished.These coils can be measured…
Electrical engineering
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