Joule Losses with Joule Heating module

Hello all,

I need some help.
Currently i'm simulating a ring copper wire (in air), using a 2D axisym with two modules: Magnetic Fields (mf) and Joule Heating (jh).
I defined current in this ring in the mf module to obtain a density of 6e6 A/m^2. Then i used a "heat source" of the Joule heating module originated by the "General source-Electromagnetic heating (mf)".

I was hoping to compute the temperature increase due to the Joule losses, but when I do a 2D plot of the "resistive losses [W/m^3]" and the result is strange. I thought the obvious result it would be:

- "Electrical resistivity of copper [ohm.m]"x"Density current [A/m^2]"^2. In my case 1.6667e-08x(6e6)^2=6e5 [W/m^3]

- but the results shows a resistive losses of 1e5 [W/m^3].

My questions are:
- I am using the right modules to do that?
- Can I define a "heat source" of the Joule module "General source-Electromagnetic heating (mf)" to refer the Joule losses in the copper?

Thanks for your attention,
The best rewards,
João Fernandes