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Ampere balance


The ampere balance is an electromechanical apparatus used for the precise measurement of the SI unit of electric current, the ampere. It was invented by William Thomson, 1st Baron Kelvin.

Printed dictionaries and other books with definitions for Ampere balance

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Google previewLaboratory and Factory Tests in Electrical Engineering (1904)

by George Francis Sever, Fitzhugh Townsend

As this operation is one of the most accurate of physical measurements, the ampere balance is an inherently accurate instrument. The balance consists of a pivoted horizontal bar with a coil at each end. Each of these coils is between two fixed ...

Google previewThe Electrical Review (1905)

It is needless to point out that, so far as these two books are concerned, the ampere balance is an impossibility, and the ohm a myth.

Google previewThe Standard Electrical Dictionary (1892)

A Popular Dictionary of Words and Terms Used in the Practice of Electric Engineering by Thomas O'Conor Sloane

Thus there is a centi- ampere balance, deka-ampere balance and others, as well as an ampere ...

Google previewHawkins' electrical dictionary (1910)

a cyclopedia of words, terms, phrases and data used in the electric arts, trades and sciences by Nehemiah Hawkins

Ampere Balance. 11 Analysis. Ampere Balance.— An ammeter in the form of a balance or scales. These balances are made with different capacities for different current strengths. Ampere Centimeter. — The magnetic flux caused by a current ...

Google previewDictionary of Phhysics

Current balance (Ampere balance). A device which is used for measuring electric current to a high degree of accuracy, by measuring the electromagnetic force produced between two conductors carrying the current. Current density. Symbol: j .

Google previewThe Encyclopaedia Britannica (1911)

A Dictionary of Arts, Sciences, Literature and General Information by Hugh Chrisholm

Lord Kelvin's Ampere Balance. ing manner:—The upper edge of the shelf on which the weights slide (see fig. 8) is graduated into equal divisions, and the weight is provided with a sharp tongue of metal in order that its position on the shelf may ...

Google previewDictionary of Pure and Applied Physics (2000)

by Dipak Basu

ampere balance An apparatus ...

Google previewThe Facts on File Dictionary of Physics, Fourth Edition (2009)

by John Daintith

ampere balance See current balance. ampere-hour Symbol: Ah A unit of electric charge equal to the charge transferred through a ...

Google previewAn Encyclopedia of the History of Technology (2002)

by Ian McNeil

the electrodynamometer was the Kelvin Ampere Balance, in which the attractive force between fixed and moving coils was balanced by a sliding weight on a balance arm. The arrangement was similar to a balance for weighing. In 1894 two ...

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