Ampere
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This article from the 1928–1936 Soviet Medical Encyclopedia defines the ampere as the practical unit of electric current, named after the French physicist Ampère. It details its relation to the absolute electromagnetic unit, the coulomb, and the electrochemical deposition of silver.
Encyclopedia entry (1928–1936)
AMPERE, the practical unit of electric current strength, named after the French physicist Ampère (see). It is equal to 0.1 of the absolute electromagnetic unit (CGSM). With a current strength of 1 A, an amount of electricity equal to one coulomb (see) passes through the cross-section of a wire per second; 1 A in 1 sec deposits 1.118 mg of silver at the cathode. Passing through a circular conductor with a circle radius of 1 cm, this current acts on a unit of magnetic mass placed at the center with a force equal to 0.1 dyne.
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“Ampere.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/ampere/