We Can Figure This Out.org
Virtual Lab: AC & DC Electric Motors
University of Virginia
© 2003-Present, John C. Bean
On the magnet′s rotatable shaft, we add a metal ring that has been split into two slightly separated pieces (in this view, one half ring is to the left, the other to the right).

For obvious reasons, each of these new pieces is called a "split ring."

One end of the electromagnet is wired to one of these split rings (as indicated by the moving red arrow).

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