How we define the basic electrical units and why it matters
This booklet explains the search for two foundation units and how they’re chosen to be accurate, concrete, and reproducible in laboratories around the world. It looks at the ohm and the second unit, and why the volt’s role is tied to those choices.
Two fundamental questions frame the discussion: which two units should be chosen, and how should their definitions be written so measurements stay consistent over time? The text compares the practical approaches of using a mercury-based resistance and a silver-based method, weighing their reliability, repeatability, and ease of use.Die Inhaltsangabe kann sich auf eine andere Ausgabe dieses Titels beziehen.
Anbieter: Forgotten Books, London, Vereinigtes Königreich
Paperback. Zustand: New. Print on Demand. This book studies the complexities and history of the electrical units the ampere, volt and ohm. These play an important role in science and technology, and are significant enough to have been discussed at the International Electrical Congress. The book emphasizes how the three units have been fundamentally defined in terms of concrete and absolute standards, with insight into the distinctions between these standards. The text traces the practical and theoretical challenges that have come up in the process, including difficulties in reconciling absolute and international units, and methods of increasing accuracy via absolute measurements. Ultimately, the book analyzes which of these units provide the most benefit in terms of accuracy, concreteness and ease of reproduction. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781333734039_0
Anzahl: Mehr als 20 verfügbar
Anbieter: PBShop.store US, Wood Dale, IL, USA
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781333734039
Anbieter: PBShop.store UK, Fairford, GLOS, Vereinigtes Königreich
PAP. Zustand: New. New Book. Shipped from UK. Established seller since 2000. Bestandsnummer des Verkäufers LW-9781333734039
Anzahl: 15 verfügbar