What is a coulomb equivalent to in terms of electrons?

A coulomb is defined as the amount of electric charge that is transported by a constant current of one ampere in one second. In terms of electrons, one electron carries a charge of approximately ( 1.602 \times 10^{-19} ) coulombs.

To calculate how many electrons constitute one coulomb, you divide one coulomb by the charge of a single electron:

[

\text{Number of electrons in one coulomb} = \frac{1 , \text{coulomb}}{1.602 \times 10^{-19} , \text{coulombs/electron}} \approx 6.242 \times 10^{18} , \text{electrons}

]

This value is commonly rounded to approximately ( 6.24 \times 10^{18} ) electrons.

The closest and most accurate representation of this number from the choices provided is ( 6,240,000,000,000,000,000 ) electrons, making that the correct answer. Understanding this relationship between coulombs and electrons is fundamental in fields involving electricity and charge, as it allows for the quantification and calculation of electrical systems.