{{ /dowell_curves_porosity_0.785_magnetica.png?900 }} Family of [[/Dowell curves|Dowell's curves]] for [[/copper]] at 20°C, with [[/porosity factor]] = 0.785. dowell_curves_porosity_0.785_magnetica.png {{page>insert/file-sz-cc}} {{tag> Proximity_factor Proximity_effect Proximity_loss Dowell_curves Dowell_equations Files}}