residual magnetism

nounElectricity.

Origin of residual magnetism

First recorded in 1830–40

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

The magnetism remaining in the iron after the current stops is called the residual magnetism.
Physics | Willis Eugene Tower
The residual magnetism is small when the core is made of small wires or thin plates, but is larger when the iron core is solid.
Physics | Willis Eugene Tower
On moving the bar from the pole the bound magnetism is released and a part becomes residual magnetism.
Scientific American, Volume 40, No. 13, March 29, 1879 | Various
This is due to residual magnetism (see 14), and points to hard or unannealed iron in the cores or armature.
Electric Bells and All About Them | S. R. Bottone
Only here we must have just a little residual magnetism in the field magnet to start the whole process.
A Librarian's Open Shelf | Arthur E. Bostwick

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