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Physics: An object which imparts a force on other magnets. The force is caused by moving charges within the object, and a significant net field can be produced either by alignment of atoms to a single axis, thus adding the individual magnetic fields of the orbiting electrons, or by the flow of current through a conductor. The field of permanent magnets is closest to the field generated by a solenoid. Because the field is generated by the movement of charge, and is dependent on the direction of that movement, no conventional magnet can have a nonzero total field. A thin conductor with a conventional current flowing through it will have a circular magnetic field clockwise when viewed in the direction of flow. Unit of magnetic field: Tesla, subdivision Gauss (= 1/1000 Tesla)
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