- #1
hangainlover
- 83
- 0
Homework Statement
Although it is not a homework question , i thought the formati is pretty much comparable
I thought of this model and can't come to a convincing conclusion.
we have two concentric shells, one of radius r1 of charge Q and the other of radius r2 of charge -Q.
r1< r2
What is the electric potential energy U between the two shells?
is it just -QQ/(r2) since the inner shell is just like a point charge?
or should it be -QQ/(r2-r1) the distance between the two surfaces?
What about their gravitational potential energy between the two shells?
m1m2/r2 or m1m2/(r2-r1)
Homework Equations
Q1Q2/r
and m1m2/r
The Attempt at a Solution
my attempt is as follows above