Primarily used in technical and mechanical contexts to describe components within electrical devices. He's inspecting the armature for any signs of wear.
Pro Tip 2/3
Not Always Visible
The armature is often internal and not visible without disassembling the machine. After opening up the engine, we could see the armature.
Pro Tip 3/3
Associated with Movement
In generators or motors, 'armature' implies movement and interaction with magnetic fields. The motor's efficiency depends on the armature's speed.