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Coulomb (unit) : ウィキペディア英語版 | Coulomb
The coulomb (unit symbol: C) is the International System of Units (SI) unit of electric charge. It is the charge (symbol: ''Q'' or ''q'') transported by a constant current of one ampere in one second: : Thus, it is also the amount of excess charge on a capacitor of one farad charged to a potential difference of one volt: : It is equivalent to the charge of approximately ( mol) protons, and −1 C is equivalent to the charge of approximately electrons. == Name and notation == 〔(【引用サイトリンク】publisher=BIPM )〕
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