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In storing magnets, the keeper is used to

Physics
WAEC 2024

In storing magnets, the keeper is used to

  • A. cancel the effect of the earth's magnetism
  • B. reduce self demagnetization
  • C. protect the magnet from stray electric field
  • D. increase the strength of the magnet.
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Correct Answer: Option B
Explanation

Keepers reduce self-demagnetization of magnets by providing a low reluctance path for magnetic flux, thereby containing the flux within the keeper.

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