Question

distinguish the magnetic properties of Dia, para and ferromagnetic substance in terms of
1)susceptibility
2)permeability
3)coercivity​

Answer 1

$\bold {\huge {Answer :-}}$

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✭Differences of Dia, Para, and ferromagnetic materials are-

Diamagnetic Materials

⇒Susceptibility ➛small and positive

⇒Magnetic permissibility➛ $\bf\huge\boxed{\mu\:<\mu_{\circ}}$

⇒ Coercivity ➛Very low and opposite to that of paramagnetic substances

⇒Ex➛Cu

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Paramagnetic Materials

⇒Susceptibility ➛small and positive

⇒Magnetic permissibility➛ $\bf\huge\boxed{\mu>\mu_\circ}$

⇒ Coercivity ➛Very low coercivity

⇒Ex➛Al

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Ferromagnetic Materials

⇒Susceptibility ➛Very large and positive

⇒Magnetic permissibility➛ $\bf\huge\boxed{\mu\:>>\mu_\circ}$

⇒ Coercivity ➛May have low or high coercivity.

⇒Ex➛Ni