Why does red copper take micro magnetic
Jun 27, 2022
The force generated is not felt as mutual attraction, but as resistance, the force that prevents the magnet and the copper from moving against each other.
The reason is eddy current effect, copper plate relative to the magnet movement, cutting magnetic field lines to produce eddy current, eddy current formation magnetic field, and the magnetic field of the magnet interaction, produce a relative force, the faster the speed, the more obvious the force. The magnet is usually not very fast on the copper plate, but when it leaves, it can accelerate and feel more obvious. If you move the magnet horizontally relative to the copper, the resistance will be more pronounced.
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