You could in theory make that with two solenoids sharing a core and inverting the electric field and make it work like a NS-SN joined magnet. But I guess it wo

You could in theory make that with two solenoids sharing a core and inverting the electric field and make it work like a NS-SN joined magnet. But I guess it would heat up fairly quickly, having to fight the force of the opposing S-S poles. Now I want to try it.