International Library of Technology · Scranton, International Textbook Co. · leaf 371
pig. 2. … Fig. 3. 4. Direction of Current.—The shapeof the carbon points depends on the direc-tion in which the current flows. In Fig. 1,the top carbon is supposed to be thepositive one, so that the current flowsfrom the top to the bottom, as is nearlyalways the case in practice. Fig. 3 showsa section of the…
Electrical engineering
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