Question about flux

  • Thread starter vande060
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Homework Statement


A region of space around the origin contains an electric field E = 2.0i − 3.0 j. Such a field cannot exist
in empty space. Find the total charge within a cube of side a = 0.5m centered on the origin, with its six faces
possessing normals in the six cardinal directions ±i,±j,±k.



Homework Equations



∫ E da = q/εo


The Attempt at a Solution



So I know what E is so I can plug that into gauss' law and dot that into the surface area of a side of the cube, then set that equal q/εo

I really only have to be concerned he with +/- i and +/- j



(2.0i − 3.0 j) . (+/-a2i +/-a2j) = q/εo

Is this right so far, if it is ill just solve for q, but im not sure if im right to this point
 

Answers and Replies

  • #2
Andrew Mason
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You will have to explain the problem better. Can you give us the actual wording of the problem?

AM
 
  • #3
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You will have to explain the problem better. Can you give us the actual wording of the problem?

AM

Thanks for your response. I copied and pasted the problem word for word in my book under headline 1, I dont know how to make it clearer, thats verbatim. What i got from it was to use the electric field given, and plug that in to the formula for flux(under headline 2) and solve for q.
 

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