Hi all, I am beginer for studying Comsol. I am modeling the influence of roughness on impedance response of rectangular electrode and using AC/DC module in Comsol now. I really do not know how can I set up the formula to calculate the current distribute around my electrode. I looked at up the formula the current= comp1.intop1(-ec.nj2(x+y)) for 2D problem. I am doing 3D now. Thank you very much!
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