If you have investigated electric power or amperes you will encounter the term Coulomb.
A Coulomb is the base unit of charge in the SI system of measurement.
A Coulomb is equal to 1/(1.602176634×10−19
The 1.602176634 x 10 -19 is the charge of a single electron called the elementary charge
You can Think of a coulomb as a bag of electrons.
It takes 6.24 x 10 18 electrons to make the charge of 1 Coulomb.
1C = 1A x 1s
In other words if the current in a circuit is 1 ampere then 1 Coulomb passes a point each second.
1A = 1C/s
Since Coulomb measures charge, let's talk about charge.
Charge is written with a Q
Q = N x e
N = number of electrons
e = elementary charge remember roughly 1.6 x 10-19
So in summary,
A Coulomb is a measure of charge
It is equal to 6.24 x 10 18 electrons
Charge is represented with the letter Q
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