ampere-hour
A·helectric charge · International · Modern
1 ampere-hour = exactly 3600 C.
Converter
electric charge · International · Modern
coulomb
Cexact
- Record
- M031
- Definition quality
- Standardized
- Conversion mode
- multiplicative
- Calculator
- Fully calculable
Etymology/person-name origin not separately researched unless stated by standards history; current definition/conversion resolved.
Definition
SI derived unit of electric charge; 1 C = 1 A·s.
Reference value
One coulomb is equal to 1 coulomb.
History & use
The coulomb was included in the international MKS electrical unit definitions ratified in the 1940s.
Modern use
Standard SI unit for electric charge.
Did you know?
Under the revised SI, the elementary charge has an exact value in coulombs.