alleryStart learning →One ampere is equal to which of these?
AOne ampere per volt
BOne joule per volt
COne coulomb per second
DOne watt per second
Answer & Solution
Correct answer: C. One coulomb per second
1. Current is charge divided by time, so its unit is a charge unit divided by a time unit.
2. Charge is measured in coulombs and time in seconds, giving 1 A = 1 C/s.
3. One volt per ampere is the ohm, the unit of resistance, not of current.
4. Joules per volt is a charge unit and watts per second is a rate of change of power, so neither names a current.
_Source: OpenStax College Physics (CC BY 4.0), Ch 20 "Electric Current, Resistance, and Ohm's Law", section 20.1 Current_
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