FERROMAGNETISM -- EXPLANATION OF FERROMAGNETISM -- INTRODUCTION TO FERROMAGNETISM
Ferromagnetic Substance is such Paramagnetic substance which is highly magnetized in external magnetic field. Like Paramagnetic substance, atoms of ferromagnetic substance have a permanent magnetic moment and behave like tiny magnet. In Ferromagnetic substance, the atoms due to certain mutual interaction form innumerable small regions called domains. Each domain has 〖10〗^17 to 〖10〗^21 atoms whose magnetic axes are aligned in the same direction.
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