Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 243
re alternately north and southpoles. The armature B B, shown on the right, is a drumarmature. It consists of many coils wound lengthwise on asoft iron drum. The coils are attached to the strips of thecommutator in series. A commercial alternating-current dynamo is shown in Fig..i65.The field magnet… … FIG. 165. — A commercial alternating-current dynamo. The sources of the electrical energy. — The electricity whichwe use in our homes comes from the power house of an elec-tric power company, except that which we obtain from batteries.If the electric power company drive their dynamos by means ofa…
Physics · Home Economics
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