It depends on the type of magnet.
The Curie Point is the point above which a material cannot be a permanent magnet. For iron-type magnets, this is about 770C.
Of course, not all magnets are caused by ferromagnetism. An electric current produces a magnetic field, regardless of the temperature. The earth's core approaches a temperature of 5000 C, but the Earth still has a magnetic field caused by swirling currents in the core of the earth.
The strength of a magnet can be affected by temperature. In cold temperatures, a magnet's strength increases, while in hot temperatures, the strength decreases. This is because temperature affects the alignment of atoms within the magnet, which in turn affects the magnet's ability to produce a magnetic field. An important idea to note is that extreme temperatures can demagnetize a magnet altogether.
A magnet will stick to the metal surface inside the refrigerator. It will not damage the refrigerator or affect its operation in any way. The cold temperature of the refrigerator may slightly weaken the magnet's strength, but it will still function normally once removed.
Move towards the U magnet so that the poles attach.
Permanet Magnet
I'm unable to display images, but I can describe them for you. A bar magnet is a straight magnet with north and south poles at opposite ends. A horseshoe magnet is shaped like a horseshoe, with both poles located at the ends of the curved section. A dumbbell magnet consists of two bar magnets joined at the center. Each magnet has its north pole connected to the south pole of the other magnet, creating a closed loop magnetic field.
If it is a magnet, then it can still attract to a refrigerator. If it is a lump of hot metal or hot ceramic, then only gravity will provide attraction. The curie temperature describes when it goes from being a magnet to being a lump.
no a magnet isn't always at its best when hot. some magnets don't even work when its hot.
A cold magnet attracts more than a hot magnet. This helps the flow of electricity which therefore helps the electric field, which therefore helps the magnetic field. They use cold magnets to power the LHC which collides hydrogen atoms. Obviously the cold magnet is very attracting.
if the hot wheel is metal
is a hot magnet shorter or weaker than a cold magnet
Try!
The strength of a magnet can be affected by temperature. In cold temperatures, a magnet's strength increases, while in hot temperatures, the strength decreases. This is because temperature affects the alignment of atoms within the magnet, which in turn affects the magnet's ability to produce a magnetic field. An important idea to note is that extreme temperatures can demagnetize a magnet altogether.
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.
a magnet or hot plate
it will not attract
This particular hot plate is a common piece of laboratory equipment used for mixing solutions in the laboratory. It has a slow spinning magnetic field generated in the hot plate and this spins a plastic coated magnet placed inside the solution being heated. Turn the hot plate on, place the beaker with the solution on the hot plate. Place the magnet in the solution, adjust the temperature and speed of the magnet with dials on the front of the hot plate. This hot plate does not get hot enough usually for cooking.
A small one