- #1

bcjochim07

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## Homework Statement

I am reading through my textbook about an application of the divergence theorem involving a point charge enclosed by some arbitrary Gaussian surface. When the author evaluates the ∫

_{s}

**E**dot

**dA**, they rewrite the expression as a double integral in spherical coordinates I am fine with this except I can't quite grasp the limits of integration that are given; they are 0 to pi and 0 to 2pi. I am having trouble picturing how these rotations integrate over the whole sphere, as I keep visualizing that both the limits should be 0 2pi. Any suggestions would be greatly appreciated. Thanks.