Magnetic repulsion

Magnetic repulsion

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Credit: CORDELIA MOLLOY/SCIENCE PHOTO LIBRARY

Caption: Magnetic repulsion. The iron filings sprinkled between these two bar magnets reveal the shape of the repulsive magnetic field between them. The filings show the repulsion as field lines arcing away from the ends of the magnets. Bar magnets have a north and a south pole. Unlike poles attract each other, whereas like poles repel each other. The lines do not actually exist, as the magnetic field is continuous, but attractions between the filings make them arrange themselves into thin arcs.

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Keywords: bar, force, iron filing, iron filings, magnet, magnetic, magnetic field, magnetism, magnets, matter, north, physical, physics, pole, poles, property, repelling, repulsion, repulsive, south

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