Assertion: galvanometer's mirror | /r/CapableOf | deflect a beam of light
Facets:
value: to indicate the coil position
type: PURPOSE
Source sentences:
text: A mirror attached to the coil deflected a beam of light to indicate the coil position.
text: A mirror attached to the coil deflected a beam of light to indicate the coil position.
text: A mirror attached to the coil deflected a beam of light to indicate the coil position.