Magnetic field from an infinite sheet of charge

[gonzalesdp]

Homework Statement

you have an infinite sheet of charge in the xy plane, with surfance charge density $$\sigma$$, that is moving with a velocity $$\vec{}v$$ = v$$\hat{}i$$. Show that the magnetic fiel at some location above the plane (x,y,z,) = (x,y,h,) is given by

$$\vec{}B$$ = -(1/2)$$\mu_o$$$$\sigma$$v$$\vec{}$$

Homework Equations

B = $$\mu$$_oi/2piR

The magnetic field from an infinite wire a distance r away from it.

The Attempt at a Solution

I know I have to integrate along the y axis. I also know that there is some cancelation due to symetry and only the j hat componets are left. I'm having trouble relating v, i, and $$\sigma$$

Thank you in advance for any help.

 

[gonzalesdp]

sorry about the formating of the answer. It's my first attempt at using the tools.

if it helps

B = (-1/2) mu_o sigma v
in the j hat direction.