Ferromagnetism Flashcards

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1
Q

What is ferromagnetism?

A

A unique magnetic behavior shown by select materials where the materials attain permanent magnetism after entering an external magnetic field. [Once a ferromagnet is attracted to another magnet, the ferromagnet gains the ability to be a permanent magnet]

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2
Q

What is the magnetism of a ferromagnetic material doing before becoming magnetised? And how does it become magnetised?

A

Small regions [called domains] each have their own separate magnetic pulls pointing in various directions, canceling one another out. After entering an external magnetic field, the pull of these regions align, giving the material a unified direction of pull.

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3
Q

What are Atomic Dipoles?

A

The name of a domain’s magnetic pull in ferromagnetic materials.

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4
Q

What is the strongest type of magnetism?

A

Ferromagnetism

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5
Q

What happens to a ferromagnetic substance when liquefied?

A

It looses it’s ferromagnetic properties [due to high temperature]

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6
Q

How do you remove a ferromagnet’s magnetic field?

A

To bring the ferromagnet back to zero magnetization, a magnetic field will need to be applied in the opposite direction of the original one that gave it magnetism.

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7
Q

How to you get a paramagnetic material?

A

When a ferromagnetic material gets to a high enough temperature. [this lower the magnetic pull of the material]

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