- #1
Hercuflea
- 596
- 49
Homework Statement
The question is 1.3 from Purcell E&M 3rd edition. It is asking you what the force on a point charge q is at the tip of a hollow cone (no bottom surface).
Homework Equations
F = (1/4pie0)*(qQ / r^2)
The Attempt at a Solution
I have worked on this on and off for days and I don't know what I'm doing. Apparently you have to play with the differential area...but that ends up giving me a double integral with only a single differential! It doesn't make sense!
See attached solution...