Assertion: galvanometer's needle | /r/HasProperty | hung in first galvanometers
Facets:
Source sentences:
text: In the first galvanometers, a freely turning magnetic needle was hung in a coil of wire; in later versions the magnet was fixed and the coil made movable.
text: In the first galvanometers, a freely turning magnetic needle was hung in a coil of wire; in later versions the magnet was fixed and the coil made movable.