Question

how does the strength of a magnet change along its length

Answer 1

There is relation between magnetic pole strength, magnetic pole, current and area of cross section of a magnet . according to this relation when a bar magnet is cut into two halves along its length, area of cross section become half ....

Answer 2

Answer:

There is a relation between the Magnetic Poles, the magnetic movement will become half.

Explanation:

If a bar magnet is broken into two or more pieces, each of them will have a north pole and a south pole, but the strength will depend on its location.

Hope it helped, I am still a tween.