magnetism history 2

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Last updated 5:14 AM on 9/24/26
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9 Terms

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Pierre de Maricourt (1263)

Discovered magnets have two distinct poles (North & South

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William Gilbert (1600s)

Proved Earth itself is one giant magnet

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Hans Ørsted (1820)

Discovered electric current deflects a compass needle, connecting electricity and magnetism.

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Michael Faraday (1830s)

Discovered electromagnetic induction (moving magnetic field produces current in wire).

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James Maxwell (19th C.)

Unified electric/magnetic forces into electromagnetic radiation theory

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Magnet

A material or object that produces a magnetic field and has the ability to attract certain objects.

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Force due to electron arrangement

spinning electrons give certain metals magnetic properties

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Permeability

The ease with which a material can be magnetized.

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Retentivity

The ability of a material to remain magnetized.