Assertion: resistor's core | /r/HasProperty | ceramic
Facets:
value: often
type: DEGREE
Source sentences:
text: The resistance wire is usually a nickel-chromium alloy and the core is often ceramic or fiberglass.
text: These resistors have a ceramic core and a silicone resin coating, encased in an aluminum extrusion.
text: Often they have a ceramic core and are fully welded.