Question about an image charge problem

1. Oct 21, 2016

Jefferson Yun

1. The problem statement, all variables and given/known data
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With this problem, how should I set image charges so as to satisfy the same boundary condition?
And if possible, could you let me know how can that image charge configuration be deduced?

2. Relevant equations

3. The attempt at a solution
Well, I first put images charges just at the opposite side of the planar and spherical boundary. But I don't know what to do next.

2. Oct 21, 2016

arpon

I guess the boundary is like this in 3D, right? :

Do you know how to set up image charge for grounded conducting plane and for grounded conducting sphere?

Last edited: Oct 21, 2016
3. Oct 21, 2016

Jefferson Yun

No, actually it was 2d. But that situation is confusing as well. Could you let me know how should I set image charges in that situation, if possible?
And I know how to set the image charges for a ground conducting sphere or a plane. I know how to for a hemispherical bump attached on a plane as well.

4. Oct 22, 2016

arpon

If you know how to set mirror charges for grounded conducting plane and sphere, this picture is enough hint for you.