Ferromagnetic and ferrimagnetic substances Magnetic Power

Ferromagnetic and ferrimagnetic substances Magnetic Power

Assessment

Interactive Video

Chemistry, Science, Physics

10th Grade - University

Hard

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The video tutorial explains different types of magnetic substances: ferromagnetic, antiferromagnetic, and ferrimagnetic. Ferromagnetic substances, like iron, cobalt, and nickel, exhibit permanent magnetism. Antiferromagnetic substances have equal parallel and anti-parallel magnetic moments, resulting in no net magnetism. Examples include manganese dioxide and ferric oxide. Ferrimagnetic substances have unequal magnetic moments, leading to a net magnetic moment, as seen in magnetite and ferrite. Heating can convert ferromagnetic and ferrimagnetic substances into paramagnetic substances.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following metals is known for exhibiting ferromagnetism?

Iron

Copper

Silver

Aluminum

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the net magnetic moment in antiferromagnetic substances?

Positive

Negative

Zero

Variable

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of an antiferromagnetic substance?

Magnetite

Manganese dioxide

Nickel

Cobalt

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In ferrimagnetic substances, what is the relationship between parallel and antiparallel magnetic moments?

They are random

They are equal

Antiparallel moments are greater

Parallel moments are greater

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to ferromagnetic or ferrimagnetic substances when they are heated?

They become more magnetic

They lose all magnetism

They turn into paramagnetic substances

They become superconductors