Assertion: lamp | /r/Desires | large conductors
Facets:
value: very
type: DEGREE
value: to supply the necessary current
type: PURPOSE
Source sentences:
text: Thus they had low resistance and required very large conductors to supply the necessary current, so they were not commercially practical, although they did furnish a demonstration of the possibilities of incandescent lighting with relatively high vacuum, a carbon conductor, and platinum lead-in wires.