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Where is a bar magnet’s magnetic field strongest?
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Magnetic fields and the levels of magnetism of particles, atoms, crystals, and domains.
A bar magnet’s magnetic field is strongest at its magnetic poles, which are the regions located at each end of the magnet.1
At these poles, the magnetic field lines are most densely crowded together, indicating a higher magnitude of the field. As you move farther away from the poles, the field lines fan out and become less dense, signifying that the magnetic field strength decreases.2