Q. Magnetic keepers are used to protect magnets from:

  • (A) demagnetization due to heating
  • (B) Earth's magnetic field
  • (C) effect of other magnets
  • (D) self-demagnetization
✅ Correct Answer: (D) self-demagnetization

Published by Ram Sharma ⭐ 193.88K Points at 21-Mar-2022 08:10 pm in Physics

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