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The below post is related to an archived discussion

I'm trying to couple the physics Magnetic Field and Electric Currents in Comsol to study a time dependent problem. I already done the advise gived by Mr. Magnus Olsson in the last post. That is, I had set up the EC interface with an applied voltage and then I had set up the MF interface with the total EC current density as an "external current density" to make the coupling. However, when I look the simulated current in the MF, it oscillates with some kind of an offset and take several cycles to converge to the expected solution. On the other hand, if I decrease the source frequency until the skin effect is negligible, the current converges to the expected solution in just few cycles. I'm using the default solver (Segregated). Perhaps I have to configure it in a better way that I don't know yet.

So, have someone an idea to fix my problem? Do I have to do some other trick to couple this two physics?

Thanks a lot.