Recent content by ben123467

There's a link to imgur below the image if that helps. You can zoom in from there.

I took into account the opposite directions of E and ds though. I uploaded a picture, can you check my math?

Homework Statement The textbook says to find the electric potential due to a point charge by moving a test charge from R to infinity, and integrating using the equation below. But when I integrate from infinity to R, the sign switches. Why is that? Both times, electric potential at V is 0...