In storing magnets, keepers are used to
Options
A) reduced self-demagnetization >>>>>>>>>>
B) cancel the effect of the earth’s magnetic field
C) protect the magnet from stray electric field
D) increase the strength of the magnets
N.B
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.
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