Magnetic devices are formed of a ferromagnetic conductively doped resin-based material. The ferromagnetic conductively doped resin-based material comprises ferromagnetic micron conductive powder(s), ferromagnetic micron conductive fiber(s), or combinations thereof in a base resin host. The percentage by weight of the ferromagnetic micron conductive powder(s), ferromagnetic micron conductive fiber(s), or combinations is between about 20% and 50% of the weight of the ferromagnetic conductively doped resin-based material.