Read through the course notes. The course note files may also contain links to associated animations or interactive simulations.
Read sections 2.9 through 2.14:
Coulomb's Law (PDF)
Read through the class slides. They explain all of the concepts from the module.
Once you have reviewed all the materials, try the Challenge Problems.
Watch the Problem Solving Help videos for insights on how to approach and solve problems related to the concepts in this module.
We distribute a total charge Q uniformly on a thin insulating rod bent into a semi-circular of radius a. Calculate the electric field at the center of radius of the semi-circle. Calculate the electric field at the same point.
A long straight wire carries a charge per unit length λ. What is the electric field a distance d from the wire? Find this field in two different ways, first using Coulomb’s Law, and then using Gauss’s Law.
The visualizations linked below are related to the concepts covered in this module.