toroidal electronic inductors on heap in electrotechnical background

abstract background blue blur ceramic choke circuit closeup coil colorful component conductor copper core design detail development device different discarded disposal eco electric electrical electromagnetic electronic electrotechnology element engineering environment equipment ewaste ferrite ferromagnetic green group heap inductance induction inductor industrial industry macro magnetic many material nobody nopeople passive pile recycle red repair ring round science service sorting spiral stack supply tech technical technology textured toroid toroidal transformer voltage waste winding wire wrapped yellow