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Homework Statement
A point charge q is situated a distance d/2 above a square surface of side d as shown (see attached).
a) It cannot be determined
b) 2q/ε_{0}d
c) q/4[itex]\pi[/itex]ε_{0}
d) q/[itex]\pi[/itex]ε_{0}d^{2}
e) q/6ε_{0}
Homework Equations
[itex]\Phi[/itex]=q_{enc}/ε_{0}=[itex]\oint[/itex]E*dA
The Attempt at a Solution
Shouldn't the answer be zero because whatever enters the area also leave the area? If not I know I should use the integral of E*dA but I don't know what E would be.
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