Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.
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Solution

Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.
This is the reason why ferromagnetic substances like Iron, Co are used to make permanent magnets.

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Similar questions

Which of the following statements is not true?

(a) Paramagnetic substances are weakly attracted by magnetic field

(b) Ferromagnetic substances cannot be magnetised permanently

(d) Pairing of electrons cancels their magnetic moment in the diamagnetic substances

Which of the following statements are correct ?

(a) Ferrimagnetic substances lose ferrimagnetism on heating and become paramagnetic

(b) Ferrimagnetic substances do not lose ferrimagnetism on heating and remain ferrimagnetic

(c) Antiferromagnetic substances have domain structures similar to ferromagnetic substances and their magnetic moments are not cancelled by each other

(d) In ferromagnetic substances, all the domains get oriented in the direction of magnetic filed and remain as such even after removing magnetic field

Q. Assertion: On heating ferromagnetic or ferrimagnetic substances, they become paramagnetic.
Reason: Both ferromagnetic and ferromagnetic are strongly attracted by the magnetic field.

Q. Magnetic moment of

S c^{2 +}

= Magnetic moment of

C u^{2 +}

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Q. A ferromagnetic substance becomes a permanent magnet when it is placed in a magnetic field because:

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Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.If true enter 1, else enter 0.

Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.This is the reason why ferromagnetic substances like Iron, Co are used to make permanent magnets.

Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.
If true enter 1, else enter 0.

Unlike paramagnetic substances, ferromagnetic substances show permanent magnetism even if the external magnetic field is removed.
This is the reason why ferromagnetic substances like Iron, Co are used to make permanent magnets.