A Determination Of The International Ampere In Absolute Measure Classic Reprint
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A Determination Of The International Ampere In Absolute Measure
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Author : Edward Bennett Rosa
language : en
Publisher:
Release Date : 1913
A Determination Of The International Ampere In Absolute Measure written by Edward Bennett Rosa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1913 with Electric units categories.
A Determination Of The International Ampere In Absolute Measure Classic Reprint
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Author : E. B. Rosa
language : en
Publisher: Forgotten Books
Release Date : 2016-10-13
A Determination Of The International Ampere In Absolute Measure Classic Reprint written by E. B. Rosa and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-13 with Technology & Engineering categories.
Excerpt from A Determination of the International Ampere in Absolute Measure In measurements based upon the third method the evaluation of the force or torque can be reduced to the direct comparison of two masses and the determination of the acceleration of gravity. The first can be readily done with extreme precision; the second involves many difficulties, but these are largely offset by the facts that we have every reason to believe that in any region, geologically stable, the value of the acceleration of gravity remains unaltered over long epochs and that relative values of the acceleration of gravity at any two places can be readily determined with high precision. The latter fact enables the results obtained by this method at different times and places to be rendered strictly com parable with one another; the former renders the results obtained capable of correction at any future time when the absolute value of the acceleration of gravity shall have been determined to a higher accuracy than that with which it is now known. For these reasons it appeared desirable that the work should be based on the third or gravitational method. Furthermore, it appeared on the whole desirable that the construction should be such that a force rather than a torque be measured. Accordingly a current weigher, or current balance, was constructed. 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.
A Determination Of The International Ampere In Absolute Measure
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Author : E. B. Rosa
language : en
Publisher:
Release Date : 1912
A Determination Of The International Ampere In Absolute Measure written by E. B. Rosa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1912 with categories.
A Determination Of The International Ampere In Absolute Measure
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Author : Edward Bennett Rosa
language : en
Publisher:
Release Date : 1911
A Determination Of The International Ampere In Absolute Measure written by Edward Bennett Rosa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1911 with Electric units categories.
An Absolute Determination Of The Ampere Classic Reprint
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Author : Harvey L. Curtis
language : en
Publisher: Forgotten Books
Release Date : 2018-10-02
An Absolute Determination Of The Ampere Classic Reprint written by Harvey L. Curtis and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-10-02 with Technology & Engineering categories.
Excerpt from An Absolute Determination of the Ampere A determination of the absolute value of the international ampere as maintained at the Bureau of Standards has been completed. The method was that used by Rosa, Dorsey, and Miller in 1911, and a large part of their apparatus was employed. This investigation was under taken to ascertain whether there had been an important change in the unit of current since 1911, and to determine the amount by which the present international unit of current differs from the absolute unit. The determination has been carried through with the idea of Obtain ing a reliable result at as early a date as possible. 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.
Determination Of The International Ampere In Absolute Measure
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Author : E.B. Rosa
language : it
Publisher:
Release Date :
Determination Of The International Ampere In Absolute Measure written by E.B. Rosa and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Absolute Measurements
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Author : Andrew Gray
language : en
Publisher: Forgotten Books
Release Date : 2017-11-04
Absolute Measurements written by Andrew Gray and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-04 with Technology & Engineering categories.
Excerpt from Absolute Measurements: In Electricity and Magnetism This little book was originally intended to be mainly a reprint of some papers on the Measurement of Electric Currents and Potentials in Absolute Measure contributed to Namm during the winter of 1882-3 5 but as these were being reprinted, many. 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.
A New Method For The Absolute Measurement Of Electric Quantity Classic Reprint
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Author : Burton Mccollum
language : en
Publisher: Forgotten Books
Release Date : 2018-02-08
A New Method For The Absolute Measurement Of Electric Quantity Classic Reprint written by Burton Mccollum and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-08 with Technology & Engineering categories.
Excerpt from A New Method for the Absolute Measurement of Electric Quantity In the absolute measurement of current two classes of methods are available which are capable of considerable accuracy, viz, electrodynamometer methods, in which the torque exerted between a fixed and a movable coil is measured and the current in the coils calculated from this measured torque and the known dimensions of the coil; and current balances, in which the force exerted between two coils carrying the current to be measured is balanced against a known weight and the current calculated from the weight and previously determined constants of the coils. By the latter form of apparatus measurements of current have been made in which a higher degree of accuracy has been attained than with the first-named type. There are, however, numerous possible sources of error in the use of the current balance, and, although most of these can be made small individually, they may on account of their number, introduce uncertainty in the result. The ordinary electrodynamometer methods as well as the current balance require in effect two separate experiments, the first for the determination of the value of the current in terms of a torque or force, and the second for the recording of this current in terms of the electro-chemical equivalent of silver or of a resistance and standard cell. This second experiment may introduce additional possibilities of error, owing to variations in the strength of the current or the voltage of the standard cell, errors in the resistances of the potentiometer circuits and thermo-electromotive forces in the galvanometer and potentiometer circuits, etc., and while these errors can be made small, still their possible presence increases the difficulties of the measurements. Although the current balance is capable of yielding a high degree of accuracy, it is not desirable to depend on the value given by a single type of apparatus, even though the experiments may be repeated with good agreement by different experimenters and with different instruments. It is highly desirable that if possible the values be checked by some other method, using a totally different type of apparatus. 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.
The Absolute Measurement Of Capacity Classic Reprint
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Author : Edward B. Rosa
language : en
Publisher: Forgotten Books
Release Date : 2016-09-27
The Absolute Measurement Of Capacity Classic Reprint written by Edward B. Rosa and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-09-27 with Technology & Engineering categories.
Excerpt from The Absolute Measurement of Capacity Under ordinary circumstances the capacity of the condenser is very nearly given, by the first part 'of the formula the remainder. 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.
An Introduction To Physical Measurements
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Author : Friedrich Kohlrausch
language : en
Publisher: Forgotten Books
Release Date : 2017-07-26
An Introduction To Physical Measurements written by Friedrich Kohlrausch and has been published by Forgotten Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-26 with Science categories.
Excerpt from An Introduction to Physical Measurements: With Appendices on Absolute Electrical Measurement, Etc Descriptions of apparatus are but rarely given, as students mostly have instruments provided for them, and seldom have to make their own apparatus, or to put it together. 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.