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Magnetism And Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsMagnetism And Matter2 Marks
Question
Write any three characteristics, a ferromagnetic substance should possess if it is to be used to make a permanent magnet. Give one example of such a material.
✓

Answer

Characteristics for permanent magnet.
  1. High permeability.
  2. High retentivity.
  3. High coercivity.
Example: steel.

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