r to 4 points ea electrical conductor at ectrical condu yteriak are conducto + mpede the free atom lator-metalis good Insuator field lines (solid) ahd the equipotential lines (dashed) surrounding a pos 13) Explain, at the atomic level, why the electrical resistance of a wire depends o right-hand rule" that relates the ma ernal magnetic field.

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Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.