Автор: Standards United States Bureau of Название: Fees for Electric, Magnetic, and Photometric Testing (Classic Reprint) ISBN: 139729261X ISBN-13(EAN): 9781397292612 Издательство: Неизвестно Цена: 7330.00 T Наличие на складе: Невозможна поставка. Описание: Excerpt from Fees for Electric, Magnetic, and Photometric Testing Measurements of power' in watts are of course also in terms of resistance standards and standard cells. Alternating current, voltage, and power are measured by instruments calibrated by direct-current instruments, and hence are in terms of the same standards. Alternating - current instruments are used in turn to calibrate the standards used in radio measurements. T here are no international standards in magnetism, ail measure ments being in terms of electric current and electromotive force. 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. |