Why are some materials magnetic but not others?

That is why materials such as cloth or paper are said to be weakly magnetic. In substances such as iron, cobalt, and nickel, most of the electrons spin in the same direction. This makes the atoms in these substances strongly magnetic—but they are not yet magnets.

What are the two main ideas about magnetism?

Some of the commonly known ideas regarding magnetism are: (i) The earth behaves as a magnet with the magnetic field pointing approximately from the geographic south to the north. (ii) When a bar magnet is freely suspended, it points in the north-south direction.

Why can’t the magnetic fields of electrons in a group be combined?

The magnetic fields of the electrons in a group of neighboring atoms cannot be combined. When a piece of iron is not in a magnetic field, the domains point in random directions. In permanent magnets, the domains point in random directions.

Which proton experiences the greatest force from a magnetic field?

Proton 1 experiences the greater force because it moves at right angles to the magnetic field. III. Proton 2 experiences the greater force because it moves in the same direction as the magnetic field. An electron moves with constant velocity through a region of space that is free of magnetic fields.

What happens when you put two magnets next to each other?

If you have two magnets next to each other and their north poles are facing each other or their south poles are facing each other, you can see that the field lines move away from each other, so you feel a repelling force between the two magnets.

Why do magnets have north and South Poles?

All magnets have north and south poles. Opposite poles are attracted to each other, while the same poles repel each other. When you rub a piece of iron along a magnet, the north-seeking poles of the atoms in the iron line up in the same direction. The force generated by the align ed atoms creates a magnetic field.