AP® Physics C: E & M

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Moderate

Net Flux: Points

APPHEM-MS3G1U

The diagram shows four charges of equal magnitude and having the signs indicated fixed to an xy-plane. The diagram also shows a sphere $S$ of radius $r$ centered on the origin of the plane. The net flux of electric field through the sphere is $\Phi$.

Which of the following graphs best represents the value of $\Phi$ as a function of r?

A
B
C
D
E