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Same as both ends. Imagine an arrow, 4cm long overlaid on the magnet. The only difference between the N and S ends of the magnet is the ORIENTATION of the arrow as seen from each end. The magnetic field is the same throughout, with minor differences because of anisotropy of the material. There is much confusion on the net about this with many so called experts saying there is a Bloch wall at the centre of the magnet- this is total nonsense as the field is the same throughout and a Bloch wall is a phenomenon at domain level.
Some graphics....[Image taken from http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/elemag.html ] That has the magnetic field lines shown all the way through the bar magnet rather than just around the outside of the bar magnet like most diagrams will. Now, the only interesting thing is that if we had an isolated magnetic North monopole (which we don't - there aren't any magnetic monopoles), then where do we expect it to be pushed to (accelerated) if we dropped it directly on to the middle of the bar magnet? We might assume it will be pulled to the South pole of the bar magnet and pushed away from the North pole of the bar magnet, so overall it may seem reasonable to suggest it would be accelerated directly down the page in this diagram. However, that isn't what this diagram is saying, the B field inside the bar magnet isn't directed down the page. The magnetic field line in the bar magnet should be directed up the page (from the bar magnet south pole to the bar magnet north pole) and that should be the direction in which an isolated magnetic north pole would be pushed. It's kind of nice to have some basic ideas we might have held about magnetism challenged by a few simple questions that other people ask. I do like that and it may take me a day to check this out.Best Wishes.
Sheep are more familiar with earthworms than magnets, but they are sort of similar. If you cut a bar magnet in half, you get two small magnets. Sadly, only the front half of the earthworm survives, but you get the picture.
Hi.1. The idea of an isolated magnetic north pole being pushed up the page does seem to be correct. There's some reasoning and explanation we could go into but it's not essential.2. You know one day we probably will find out who you are ( @neilep ) and won't have to assume you are a sheep. None the less, there's nothing wrong with trying to maintain some anonymity online so I won't voice my suspicions here on the forum. In any event I did quite like your baaa-magnet joke and it's been quite a pleasure trying to do something with some of the posts you create.Take good care of yourself.