Magnetic Materials Quiz

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What is the defining characteristic of a paramagnetic material?

Presence of unpaired electron in an orbital (correct)

Alignment of magnetic moments

Natural magnetic field

Coherent magnetic field

What happens to ferromagnetism in iron when the temperature is raised?

It becomes diamagnetic

It becomes antiferromagnetic

It is destroyed and iron becomes paramagnetic (correct)

It becomes stronger

How is free energy defined for the given problem?

$F = E * TS$

$F = E + TS$

$F = E / TS$

$F = E - TS$ (correct)

What is the energy of aligned pairs of atoms in the given problem?

$-ε$ Signup and view all the answers

What happens to the energy of misaligned pairs of atoms in the given problem?

$ε$ Signup and view all the answers

What type of material is attracted to an applied magnetic field?

Paramagnetic material Signup and view all the answers

What type of material has a natural magnetic field?

Ferromagnetic material Signup and view all the answers

What happens to ferromagnetism in iron when the temperature is raised?

It is destroyed and iron becomes paramagnetic Signup and view all the answers

What is the energy of aligned pairs of atoms in the given problem?

$-\varepsilon$ Signup and view all the answers

What is the defining characteristic of a paramagnetic material?

Presence of unpaired electrons producing a magnetic moment Signup and view all the answers

Magnetic Materials Quiz

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Questions and Answers

What is the defining characteristic of a paramagnetic material?

What happens to ferromagnetism in iron when the temperature is raised?

How is free energy defined for the given problem?

What is the energy of aligned pairs of atoms in the given problem?

What happens to the energy of misaligned pairs of atoms in the given problem?

What type of material is attracted to an applied magnetic field?

What type of material has a natural magnetic field?

What happens to ferromagnetism in iron when the temperature is raised?

What is the energy of aligned pairs of atoms in the given problem?

What is the defining characteristic of a paramagnetic material?

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