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wyosteve
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Homework Statement
Have my E&M final tomorrow. Trying to work old test questions. Please check my answer for this question.
Uniformly charged sphere of charge Q and radius R, center is a distance d above a grounded plane.
Homework Equations
V(r) in the interior of a sphere is given in the problem to be Q/8πε0[3/R-r2/R3]
The Attempt at a Solution
Using method of images, let there be a second sphere of charge -Q a distance d below the plane. Let d be along the z-axis
for sphere above: r2=x2+y2+(z-d)2
sphere below: r2=x2+y2+(z+d)2
my final answer
Q/8ε0(4zd/R3)
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