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![Magnetism & Electromagnetism. Magnets A special stone first discovered < 2,000 years ago in Greece, in a region called “Magnesia,” attracted iron, they. - ppt download Magnetism & Electromagnetism. Magnets A special stone first discovered < 2,000 years ago in Greece, in a region called “Magnesia,” attracted iron, they. - ppt download](https://images.slideplayer.com/37/10759216/slides/slide_2.jpg)
Magnetism & Electromagnetism. Magnets A special stone first discovered < 2,000 years ago in Greece, in a region called “Magnesia,” attracted iron, they. - ppt download
![In 1820 Hans Oersted discovered how magnetism and electricity are connected. A unit of measure of magnetic field strength, the oersted, is named after. - ppt download In 1820 Hans Oersted discovered how magnetism and electricity are connected. A unit of measure of magnetic field strength, the oersted, is named after. - ppt download](https://slideplayer.com/14880791/91/images/slide_1.jpg)