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Yes - in magentic terms, "hardness" = "permanence".

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15y ago

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What is true about permanent magnets?

Permanent magnets have their own magnetic field that does not require external electrical current to maintain. They can attract or repel other magnetic materials without losing their magnetic properties. Common materials used for permanent magnets include iron, nickel, and cobalt.


What magnets are made from materials which retain their magnetic properties for a long time?

Permanent magnets.


What kind magnets are made from materials which retain their magnetic properties for a long time?

Permanent magnets are made from materials that retain their magnetic properties for a long time without the need for an external magnetic field. Examples include neodymium magnets and samarium-cobalt magnets. These materials have high coercivity, which allows them to maintain their magnetism over long periods.


How are temporary and permanent magnets are alike and different?

Temporary magnets and permanent magnets are alike in that they both produce a magnetic field and can attract materials containing iron. However, temporary magnets only exhibit magnetic properties when exposed to a magnetic field, while permanent magnets retain their magnetism without the need for an external magnetic field.


How are temporary magnets different from permaanent magnets?

temporary magnet permanent magnetit stays for a little while it stays foreverit is made from iron it is made from steel


Why is it that permanent magnets can never be demagnetized?

Permanent magnets can never be demagnetized because they are made of materials with strong magnetic properties that align in a way that maintains their magnetic field over time.


Which materials can magnets be made from?

Magnets can be made from materials such as iron, nickel, cobalt, and certain types of rare earth metals like neodymium. These materials have magnetic properties that allow them to create magnetic fields and attract or repel other magnets or magnetic materials.


What are examples of permanent magnets?

Some examples of permanent magnets are neodymium magnets, samarium-cobalt magnets, and alnico magnets. These magnets are made from materials that retain their magnetic properties for long periods without needing an external magnetic field to remain magnetized.


Are paperclips permanent magnets?

No, paperclips are not permanent magnets. They can temporarily exhibit magnetic properties when in the presence of a magnetic field, but they do not retain magnetism like permanent magnets do.


What distinguishes a permanent magnet from a temporary magnet?

Permanent magnets do not lose their magnetic ability. Temporary magnets, however, gain magnetic properties when they are touched or moved by a permanent magnet. The properties of a temporary magnet dissipates over time after the permanent magnet is removed.


How are temporary and permanent magnets alike?

Both temporary and permanent magnets generate a magnetic field, attracting objects made of magnetic materials. They both have a north and south pole and can be used in a variety of applications such as motors, generators, and sensors.


Are permanent magnets only attracted to other permanent magnets?

No, permanent magnets can also be attracted to ferromagnetic materials such as iron, cobalt, and nickel. This attraction is due to the alignment of magnetic domains within the materials, resulting in an attractive force between the permanent magnet and the ferromagnetic material.