The coulomb (symbol: C) is the SI unit of electric charge. It is the charge transported by a constant current of one ampere in one second. One coulomb equals the charge of approximately 6.242×10¹⁸ elementary charges (electrons or protons).
Ampere-Second
The ampere-second (symbol: A·s) is equivalent to one coulomb, the SI unit of electric charge. It represents the charge transferred by a current of one ampere flowing for one second.
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