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Anglický jazyk
Stratton, S: Bulletin of the Bureau of Standards, 1907-8, Vo
Excerpt from Bulletin of the Bureau of Standards, 1907-8, Vol. 4: Nos. 1, 2, 3, 4
The need of a definite and universal system of electrical units was early recognized. Owing to its preponderating importance in the earlier applications of electricity,...
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O knihe
Excerpt from Bulletin of the Bureau of Standards, 1907-8, Vol. 4: Nos. 1, 2, 3, 4
The need of a definite and universal system of electrical units was early recognized. Owing to its preponderating importance in the earlier applications of electricity, the unit of resistance naturally received first attention. The committee on electrical standards appointed by the British Association in 1861 recommended the adoption of the C. G. S. Electromagnetic system together with a practical system defined as decimal multiples and submultiples of the C. G. S. Units. In addition, its labors led to the construction of concrete standards of resistance in the form of coils of platinum silver of special design adjusted to represent 10° C. G. S. Units as determined by a series of absolute measurements.
The definition of unit current and electromotive _force in terms of the C. G. S. Un its long met every requirement, particularly as currents were generally measured by the aid of the tangent galvanometer, while electromotive forces were generally measured in terms of the electromotive force of the Daniell cell.
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- Vydavateľstvo: Forgotten Books
- Formát: Paperback
- Jazyk: Anglický jazyk
- ISBN: 9781334472619
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