Dynamos and Electric Motors and All About Them (Classic Reprint)

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Excerpt from Dynamos and Electric Motors and All About ThemPractically a dynamo or an electric motor, electrically consists of three parts, the field, the armature and the commutator.The field consists of magnets, which are iron cores solidly connected with an iron frame. Upon the magnets are wound layers of insulated wire. These magnets are called electro-magnets, as they become magnetic only when there is an electric current passing through their coils.The armature may consist of a soft iron core mounted upon a shaft which revolves within the fields or it may be a stationary part around which the fields revolve. To the soft iron core of the armature a number of insulated copper wires are affixed with their ends connected to the segments of the commutator.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.