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 87
tery postand its negative terminal to the line post C. 506 HAWKINS ELECTRICITY When the keys are pressed, the galvanometer needle willswing either to the right or to the left. If it swing toward +,reduce the resistance in the rheostat; if it swing toward —, addresistance to the rheostat. When a… … Pig. 583—Diagram of apparatus for measuring low resistances based on the principle of theKelvin double bridge. In the diagram AB represents a heavy piece of resistance metal ofuniform cross section and uniform resistance per unit of length; CD is another piece ofresistance metal of smaller cross…
Electrical engineering
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