The base unit for measuring electric current in the International System of Units (SI) is ampere. The unit is named after French mathematician and physicist Adre Marie Ampere. The current defintion of ampere is:
The ampere is a measure of the amount of electric charge in motion per unit time ― that is, electric current.
But the quantity of electric charge by itself, whether in motion or not, is expressed by another SI unit, the coulomb (C). One coulomb is equal to about \(6.241 \times 10^{18}\) electric charges (e). One ampere is the current in which one coulomb of charge travels across a given point in 1 second.
The ampere is a measure of the amount of electric charge in motion per unit time ― that is, electric current.
But the quantity of electric charge by itself, whether in motion or not, is expressed by another SI unit, the coulomb (C). One coulomb is equal to about \(6.241 \times 10^{18}\) electric charges (e). One ampere is the current in which one coulomb of charge travels across a given point in 1 second.
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