1. Tardigrade
  2. Question
  3. Physics
  4. Those substance which at room temperature retain their ferromagnetic property for a long period of time are called

Q. Those substance which at room temperature retain their ferromagnetic property for a long period of time are called

 111  158 Magnetism and Matter Report Error

Solution:

Substance which at room temperature retain their ferromagnetic property for a long period of time are called permanent magnets.