![magnetics - Is it possible that north and south poles of a disc-shaped magnet change position over time? - Electrical Engineering Stack Exchange magnetics - Is it possible that north and south poles of a disc-shaped magnet change position over time? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/mqd0z.png)
magnetics - Is it possible that north and south poles of a disc-shaped magnet change position over time? - Electrical Engineering Stack Exchange
![A metal disc rotates freely, between the poles of a magnet, in the direction indicated. Brushes P and Q make contact with the disc axle and its edge, respectively. The direction of A metal disc rotates freely, between the poles of a magnet, in the direction indicated. Brushes P and Q make contact with the disc axle and its edge, respectively. The direction of](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1371282/original_7.png)
A metal disc rotates freely, between the poles of a magnet, in the direction indicated. Brushes P and Q make contact with the disc axle and its edge, respectively. The direction of
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