- #1
Aroldo
- 14
- 0
Hi everybody,
The situation is the classic one: a point charge q+ in a distance d above a conductor plane grounded:
The conductor is grounded so V = 0, for z = 0.
Also, far away from the system (x2 + y2 + z2 >> d) V --> 0
The argument to replace it for a q- charge seems perfect to me.
What I can't understand why W (potential energy) of the two point charges is twice as much as the conductor plane + q+ charge system.
I mean, why E = 0 for z < 0 in the conductor plane + q+.
Thank you a lot!
The situation is the classic one: a point charge q+ in a distance d above a conductor plane grounded:
The conductor is grounded so V = 0, for z = 0.
Also, far away from the system (x2 + y2 + z2 >> d) V --> 0
The argument to replace it for a q- charge seems perfect to me.
What I can't understand why W (potential energy) of the two point charges is twice as much as the conductor plane + q+ charge system.
I mean, why E = 0 for z < 0 in the conductor plane + q+.
Thank you a lot!