Assertion: commutator | /r/MadeOf | copper
Facets:
value: typically
type: DEGREE
Source sentences:
text: The commutator itself is a split ring, typically made of copper, with each segment of the ring attached to each end of the armature coil.
text: The commutator itself is a split ring, typically made of copper, with each segment of the ring attached to each end of the armature coil.