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Electrical current is measured in amperes, where one ampere is:
AOne coulomb per second
BOne joule per second
COne volt per second
DOne mole per second
Answer & Solution
Correct answer: A. One coulomb per second
1. Electrical current is defined as the rate of flow for any charged species.
2. Rate of flow means charge divided by time.
3. Current is measured in a composite unit called an ampere, defined as one coulomb per second.
4. One joule per second would be a watt, a unit of power instead.
_Source: OpenStax Chemistry 2e (CC BY 4.0), Ch 17 'Electrochemistry', sections 17.1-17.7_
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