File:OPL-fig-plate-fig3.svg

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Summary

depicts how to have induction without and external field arising.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	02:50, 9 September 2026		720 × 420 (4 KB)	BFP Rauch (talk \| contribs)	depicts how to have induction without and external field arising.

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Short title	The anchor ring experiment
Image title	A circular ring of uniform section is lapped uniformly with covered wire. When a current passes through the coil, no magnetic effect can be found outside the ring, yet a second wire embracing the ring feels an electromotive force whenever the current in the coil varies.
Width	720
Height	420