Excerpt from Electricity and Magnetism for Engineers, Vol. 1: Electric and Magnetic Circuits In the following pages is given, from an engineering point of view, (1) a description of the more important effects commonly described as electric and magnetic phenomena, (2) a statement of the fundamental laws in accord with which these phenomena have been found to occur, and (3) the application of these laws to some of the simpler problems which arise in connection with the generation, transmission and utilization of electric energy. Particular emphasis is laid upon exact quantitative statements Of the fundamental laws or principles. Both safety and economy demand that the engineer be able to answer not only how, but also how much. To this end, the student of engineering should be taught to analyze, not only qualitatively, but also quantitatively, each problem which may be presented to him. Most of the simpler formulas used by scientists and engineers are special cases of certain general relations, and these special formulas are applicable only under certain specific conditions. One of the most common causes of confusion on the part of the beginner arises from his attempt to apply such special formulas to cases to which they are not applicable. This is due in part to the failure in many text-books to state the limitations of such formulas. Particular care is therefore taken in these pages to state specifically the exact conditions under which each formula is applicable. The procedure adopted throughout the book is to pass from simple phenomena, known to practically every school-boy, to the more complex phenomena and principles with which the engineer has to deal. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.