Open AccessA determination of the electromotive force of the weston normal cell in semi-absolute volts
Publication year - 1914
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1914.0048
Subject(s) - electromotive force , dynamometer , counter electromotive force , volt , bifilar coil , physics , engineering , electrical engineering , mechanical engineering , current (fluid) , voltage , rogowski coil
Accounts of several absolute determinations of current have been published in recent years, but the agreement between the various results has not been quite as close as the accuracy of the work demanded. This paper presents the result of a determination performed with the aid of a modified form of the bifilar Weber electro-dynamometer. As this instrument has not been employed in any of the recent determinations, the result has the force of a determinations by a new method. The former obstacles to a precise use of this type of dynamometer have been overcome, and it is claimed that the absolute accuracy of the value of the electromotive force of the normal Weston standard cell has been considerably increased by this investigation.