The coulomb was previously defined in terms of the force between two wires. The coulomb was originally defined, using the latter definition of the ampere, as . The 2019 redefinition of the ampere and other SI base units fixed the numerical value of the elementary charge when expressed in coulombs and therefore fixed the value of the coulomb when expressed as a multiple of the fundamental charge.
the coulomb was previously defined in terms of the force between two wires the coulomb was originally defined using the latter definition of the ampere as  the 2019 redefinition of the ampere and other si base units fixed the numerical value of the elementary charge when expressed in coulombs and therefore fixed the value of the coulomb when expressed as a multiple of the fundamental charge