Slide 1Electromagnetism chapter 21 Slide 2 Magnets Magnetic forces are known since 6th century B.C. Permanent magnets made from: Co, Ni,Fe each magnet has two poles: (south…
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what is Magnetism how it works Magnetism More free powerpoints at http://www.worldofteaching.com Magnets have been known for centuries. The Chinese and Greeks knew about…
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Slide 1 Chapter 33. The Magnetic Field 1. Moving charges make a magnetic field 2.The magnetic field exerts a force on moving charges Thus moving charges exert forces on each…