Cyclopedia of applied electricity : a practical guide for electricians, mechanics, engineers, students, telegraph and telephone operators, and all others interested in electricity (1905)
American School (Chicago, Ill.) · Chicago : American School of Correspondence · leaf 315
17 there is shown in outline form a simple dynamo;the yoke Y connects the field pieces FF, ujton which are woundthe field coils; the latter is charged by an external current in thedirection of the arrows. In an intense magnetic field, between thepole pieces N and S, is the armature. It is made np… … FiR. 17. 287 58 THE ELECTRIC TELEGRAPH of strips separated by insulating material, and bound together ina cylinder to form the commutator marked C; the collecting brushesBB correspond to the copper and zinc poles of a voltaic cell. A gas or steam engine is usually the motive power for a dynamo;a…
Electrical engineering
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