# Flux through cylinder

## Homework Statement

Hey guys.

I have this question:

http://img122.imageshack.us/img122/2936/84391716.jpg [Broken]

I think that the flux through the top and bottom is zero and that because A does not have a component in the z axis direction.
So all that got left is the lateral area.
Well, I get 0 and I don't know why. I'm suppose to get 120, I obviously have a mistake and I don't know where.
Can I please have some help?

Thanks

## The Attempt at a Solution

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Dick