I need to find the flux of the vector field F through S (in the pic), when S represent the edges of a cube.

My question is, how do I find N (normal)? Do I need to split the curb and to find the flux through each face?

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- Jul 28th 2008, 12:06 AMasi123Flux
I need to find the flux of the vector field F through S (in the pic), when S represent the edges of a cube.

My question is, how do I find N (normal)? Do I need to split the curb and to find the flux through each face? - Jul 28th 2008, 04:17 AMmr fantastic
- Jul 28th 2008, 05:11 AMasi123
- Jul 28th 2008, 05:13 AMmr fantastic
- Jul 28th 2008, 07:32 AMasi123
Another thing, why the fluxes aren't canceling one another?

- Jul 28th 2008, 08:16 PMmr fantastic
- Jul 29th 2008, 11:20 PMasi123Still a bit stuck
Lets say I want to calculate the flux which goes through the upper face.

I know the vector field is F, and I know the normal, so I came up with this thing in the pic.

My question is, how do I find ds? - Jul 30th 2008, 03:33 AMasi123
I think I found a better way using Gauss' law, is this right?

- Jul 30th 2008, 05:15 AMmr fantastic