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Fundamentals of Electricity

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Magnetism

The generation of electric power depends on magnetism or the principles of magnets. Most of us have seen a magnets' ability to attract certain metals, such as iron. Any material that can attract metals is called a "magnet". The attractive ability of these materials is called "magnetic force". Certain specimens of iron ore possess this attracting property when they are taken from the earth. One name for this material is magnetite or lodestones.