Assertion: galvanometer's coil | /r/CapableOf | carry mirror
Facets:
Source sentences:
text: The moving coil carries either a pointer or a mirror that deflects a light beam when it moves; the extent of the deflection is a measure of the strength of the current.
text: The movable coil may carry a pointer or a mirror; in the latter form it is well represented by several much used laboratory instruments.