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 275
curate than the magnetic vane, but cannot readily be employed for the indicationof current, as required in ammeters. coils at right angles to each other and to apply tortion to thespring to oppose the deflection of the movable coil for thisposition when a current is passed through the coils. A… … Fig. 2,515.— Armature of Wagnerdynanometer movement. Greateraccuracy is claimed for this move-ment than the magnetic vane, butit cannot readily be employed forthe indication of current flow, asrequired in ammeters. The mag-netic vane movement is usedon the A. C. ammeter, and can beused also in the…
Electrical engineering
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