How many electrons equate to one coulomb of charge?

One coulomb of charge is defined as the amount of electric charge carried by a constant current of one ampere flowing for one second. To understand how many electrons equate to one coulomb, it's essential to know the charge of a single electron, which is approximately 1.6 x 10^-19 coulombs.

To calculate the number of electrons in one coulomb, you can divide one coulomb by the charge of a single electron. Thus, the calculation is as follows:

1 coulomb / (1.6 x 10^-19 coulombs/electron) = 6.25 x 10^18 electrons.

This calculation shows that approximately 6.25 quintillion electrons make up a total charge of one coulomb. Therefore, the answer is accurately represented by this option, which correlates directly to the standard definition of electric charge and reinforces the fundamental concepts of electricity and electron flow.