Assertion: coil | /r/HasProperty | wrapped around core
Facets:
value: either of plastic
type: OTHER
Source sentences:
text: An inductor usually consists of a coil of conducting material, typically insulated copper wire, wrapped around a core either of plastic (to create an air-core inductor) or of a ferromagnetic (or ferrimagnetic) material; the latter is called an "iron core" inductor.