Coulomb's Law – Basic Electricity - BCcampus Pressbooks

Home » How Many Electrons In A Coulomb » Coulomb's Law – Basic Electricity - BCcampus Pressbooks

Maybe your like

" Skip to content

Atomic Structure

Figure 3. Charles Coulomb

Charles Augustin Coulomb was a scientist after whom the unit of charge was named. Coulomb’s Law states:

   A force exists between two point-source charges that is directly proportional to the product of the two charges and inversely proportional to the square of the distance between the charges.

A coulomb is the unit of charge, symbolized by C. One coulomb is the total charge carried by 6.25 X 1018 electrons.

A formula to calculate the coulombs of charge for a certain number of electrons is shown below:

[latex]Q=\frac{Number of electrons}{6.25 X 10^{18}C}[/latex]

How many coulombs of charge do 65.5 X 1031 electrons have?

[latex]Q=\frac{65.5 X 10^{31} electrons}{6.25 X 10^{18} C}= 104.8 X 10^{12} C[/latex]

Previous/next navigation

Previous: Electrical Charge Next: Basic Electrical Units Back to top

License

Icon for the Creative Commons Attribution 4.0 International License

Basic Electricity Copyright © 2019 by Chad Flinn is licensed under a Creative Commons Attribution 4.0 International License, except where otherwise noted.

Share This Book

Tag » How Many Electrons In A Coulomb