Calculation Flux integral

  • #1
QUESTION: Compute the flux of the vector field, F , through the surface, S.

F = xi+yj+zk

S is the part of the surface z = x^2 + y^2 above the disc x^2 + y^2 ≤ 4 , oriented downward.

I am just wondering why the integrand is from o to 4 while the radius is only 2.

bewjcz.jpg
 

Answers and Replies

  • #2
HallsofIvy
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It isn't. That's incorrect. It should be 2.
 
  • #3
My solution guide says otherwise, along with my online homework
 
  • #4
It isn't. That's incorrect. It should be 2.
I just emailed my teacher and he said there was an error in the online homework. The correct answer is indeed used with radius 2. Sorry about that.
 

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