Heating up a magnet actually makes it weaker. A magnet can be completely demagnetized when heated past it's Curie temperature.
I suggest that you incinerate it.
The number of paperclips a bar magnet can pick up will depend on the strength of the magnet and the size of the paperclips. In general, a typical bar magnet can pick up several small paperclips at once.
If there is a magnet in the doorbell when it is connected, the result would be that the magnetic switch inside the doorbell is activated when the magnet is near, causing the doorbell to ring or chime. The presence of the magnet completes the circuit and triggers the doorbell mechanism.
You can make a temporary magnet by rubbing a piece of iron or steel with a permanent magnet. This aligns the domains in the material, creating a magnetic field. However, this magnetism will fade over time as the domains become disorganized again.
It is simply called a scrap magnet. Ohio Magnetics and Walker both manufacturer scrap magnets.
An electromagnet is a stronger magnet.
Heating a magnet can cause it to lose its magnetism by disrupting the alignment of its magnetic domains. This is due to the increased thermal energy overcoming the magnetic forces within the material. Repeated or excessive heating can permanently demagnetize the magnet.
I suggest that you incinerate it.
You can demagnetize a magnet by heating it up to its Curie temperature, by striking it with a hard blow, or by applying an alternating magnetic field that disrupts the alignment of its magnetic domains.
The one that the field strength is stronger
The one that the field strength is stronger
To test the strength of a magnet, you can use a compass to see how strongly the magnet attracts or repels the needle. The stronger the magnet, the more the needle will move. You can also compare the magnet's ability to pick up metal objects of different weights to gauge its strength.
Metals + Stone = Magnet
If you take a permanent magnet and heat it up past the Curie temperature (or Curie point, Tc) and cool it, the magnetic domains in the magnet, which were aligned when it was made, will become randomly oriented. When the "magnet" cools, its magnetic properties will have "disappeared" and the you'll have a piece of metal alloy. If you like, you can make a new magnet out of your hunk of metal by heating the metal past the Curie point again, applying a static magnetic field to it, and then cooling it back down in the presence of the magnetic field. That's the way the magnet was manufactured and made into a magnet to begin with.
A hot magnet's strength typically decreases as it heats up because heat disrupts the alignment of its magnetic domains. In contrast, a cold magnet usually has stronger magnetic properties because the lower temperature helps maintain domain alignment.
Magnetic fields are stronger when cooled down. This is because the atoms that make up the magnetic material aren't moving as fast as a heated magnet's atoms. This means that the magnetic domains are less likely to move out of place and mess up the magnetic field.
Synonyms for make stronger are strengthen, fortify, and build up.