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Magnetism — PHYSICS STD 6 — Question

ICSE BoardEnglish MediumSTD 6PHYSICSMagnetism1 Mark
MCQ
A permanent magnet can be demagnetized by
  • A
    hammering
  • B
    heating
  • C
    rough handling
  • ✓
    all of these.
✓

Answer

Correct option: D.
all of these.
all of these.

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