Question

what is the role of keepers in storing the magnets?

Answer 1

a  magnetic keeper is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have a low magnetic coercivity, such as alnico magnets.

Keepers also have a useful safety function, as they stop external metal being attracted to the magnet.

pls mark as brainliest

Answer 2

A magnet keeper, also known historically as an armature, is a Paramagnetic bar made from soft iron or steel, which is placed across the poles of a permanent magnet to help preserve the strength of the magnet by completing the magnetic circuit; it is important for magnets that have a low magnetic coercivity, such as alnico magnets.

Keepers also have a useful safety function, as they stop external metal being attracted to the magnet.

Most magnets do not need a keeper, only those with low coercivity, meaning that they are easily susceptible to stray fields.

A magnet can be considered as the sum of many little magnetic domains, which may only be a few microns or smaller in size. Each domain carries its own small magnetic field, which can point in any direction. When all the domains are pointing in the same direction, the fields add, yielding a strong magnet. When these all point in random directions, they cancel each other, and the net magnetic field is zero.