Magnetism

Front

What is a permanent magnet?

Back

A permanent magnet is a material that produces a magnetic field without any external magnetic field being present.

Front

What does the magnetic field around a bar magnet represent?

Back

The magnetic field around a bar magnet represents the area where magnetic forces can be detected.

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Front

What produces a magnetic field?

Back

A magnetic field is produced by moving electric charges.

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Front

What happens when two North poles or two South poles of magnets are placed facing each other?

Back

They will repel each other.

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Front

How can the shape of a magnetic field be visualized?

Back

By sprinkling iron filings in a magnetic field on a flat surface.

Front

What is the definition of a magnetic field?

Back

A magnetic field is a field of force that surrounds a magnet and exerts a force on other magnets or magnetic materials.

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Front

What are the two types of magnetic poles?

Back

North pole and South pole.

Front

What is the principle of magnetic attraction?

Back

Opposite poles (North and South) attract each other, while like poles (North-North or South-South) repel each other.

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Front

What is the role of electric charges in magnetism?

Back

Moving electric charges create magnetic fields.

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Front

What is the significance of iron filings in studying magnetic fields?

Back

Iron filings align along the magnetic field lines, visually representing the shape and direction of the magnetic field.

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