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单词 ampère
释义

ampere or ampère /amˈpār or -pārˈ, or ã-perˈ/

noun

A base SI unit, the unit of electric current (symbol A), defined as that which, flowing in two straight parallel conductors of infinite length and negligible circular cross-section, one metre apart in a vacuum, will produce a force between the conductors of 2×10−7 newtons per metre length

ORIGIN: AM Ampère (1775–1836), French physicist

amˈperage noun

Current in amperes

ampere hour noun

Unit of charge = 3600 coulombs, or one ampere flowing for one hour

international ampere

  1. A unit formerly defined by means of the rate of deposition of silver from a solution of silver nitrate, which was slightly less than the practical unit in use
  2. Now defined as having the same value as an ampere

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更新时间:2024/9/20 18:29:13