- #1
Void123
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Homework Statement
I'm supposed to find the net force that the southern hemisphere of a uniformly charged sphere exerts on the northern hemisphere. I must express my answer in terms of the radius [tex]R[/tex] and the total charge [tex]Q[/tex].
Homework Equations
[tex]F = QE[/tex]
[tex]\int E[/tex] [tex] da = \frac{1}{\epsilon_{0}}Q[/tex]
The Attempt at a Solution
From the second equation, I can get an expression for [tex]E[/tex] which gives me the area and multiply the whole expression by [tex]Q[/tex] to get the net force. But I am not getting the right answer. I'm guessing the area I have is incorrect. Unless the whole procedure is incorrect from the beginning.