Excerpt from Practical Electricity: Laboratory and Lecture Course, for First Year Students of Electrical Engineering This book is intended to assist students in acquiring experimentally an exact working knowledge of electric current, difference of potentials, resistance, electromotive force, quantity, capacity, and power. It does not merely contain short instructions for the carrying out of experiments such as may be found in existing books on practical physics, nor, on the other hand, does it resemble certain text-books, mainly of value as electrical dictionaries, which give a little information about everything that can be comprised under the head of electricity, whether it be electric eels, the history of the invention of the telegraph, the aurora, or the earliest forms of frictional machines. During the past few years I have been gradually developing a three years laboratory and lecture course for students of electrical technology, and this book comprises the substance of the first years course, together with some additional matter, mainly in small print. Experience has shown me that after a student has gone intelligently through this course, under proper direction, he has obtained clear notions of the meaning of the ampere, the volt, the ohm, the coulomb, the farad, and the watt, and feels himself familiar with their connection with one another, and with the modes of employing them in actual practice. He has, in fact, mastered the basis of the exact commercial measurement of electrical quantities. 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.