A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. … A permanent magnet′s magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets
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A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. … A permanent magnet′s magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets