Assertion: litz wire | /r/HasProperty | effective
Facets:
value: below 500 khz
type: TEMPORAL
value: very
type: DEGREE
Source sentences:
text: Litz wire is very effective below 500 kHz; it is rarely used above 2 MHz as it is much less effective there.
text: Because nichrome wire is an effective heating element, it is frequently used in hobbies and art forms.