A unit of electric charge in physics, named after physicist Charles-Augustin de Coulomb.
Named after the 18th-century French physicist Charles-Augustin Coulomb. The unit became standardized in the metric system during the late 1800s, though 'coulomb' is the modern preferred spelling.
A coulomb is such a huge amount of charge that we barely ever use it—you'd need 6.2 billion billion electrons to equal one coulomb, which is why we mostly use millicoulombs instead.
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