YES it will demagnitize at round 800 to 1000 degrees
It depends on the type of lamp and the strength of the magnet. An incandescent lamp works literally by running current through the filament to heat it. Parts of the bulb might be magnetic, so if the magnet were ridiculously powerful it might deform or break them. Fluorescent and Neon lamps use ionization, so although I haven't tried it, I'd bet a reasonably strong magnet might affect them. If you have an old CRT-based television or computer monitor you can see how this works by placing a magnet near it -- note, this can cause permanent effects to the picture quality, so either keep the magnet at a distance where the effect is minimal or use a CRT you don't care about. LED lamps are so small and well-constructed that I think they're more like incandescent lamps -- a really powerful magnet might damage them, but otherwise is unlikely to affect them.
the magnet attracts to iron by the magnetic field both the iron and the magnet have
can be separated by using a magnet
Lodestone is an example of a natural magnet.
the magnetic field of a magnet is measured through Gaussmeters.
yes it does affect magnets ! though cold has little effect on the properties of a magnet , but heat drastically brings about change in properties of a magnet. With increasing temperature, the magnet will gradually lose magnetization until a certain temperature (called the Curie temperature) where the magnetization goes away entirely. In addition to this effect, the domains of the magnet will have a greater chance of changing orientation, further weakening the overall magnetic effect.
Heating a bar magnet is a physical change because the magnet does not undergo a chemical reaction. The heat energy causes the atoms in the magnet to vibrate, which disrupts the alignment of the magnetic domains within the magnet, thereby reducing its magnetic strength.
It depends on the gauss value of the magnet. Yourstood on a big magnet. It'scalled Earth. Youre a long way from the poles but it still has an effect on metals.
A permanent magnet (i.e. not an electromagnet) will be demagnetised by heating it.
no
A magnetic pole is where the magnetic effect is greatest.
Dynamo has constant magnet inside.When movement comes up ,magnet starts turning .And outside of magnet has coiled wire .So this movement of magnet causes electromagnetic effect .Finally current consists with this electomagnetic effect.
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
no. Not nesseicerally
When heat is applied to a magnet, the thermal energy causes the atoms to vibrate more, disrupting their alignment and reducing the magnetism. If the heat is removed, the atoms can realign, potentially increasing the magnet's strength. However, this process is not always consistent and may depend on factors like the type of magnet and the level of heat applied.
heat
The area of a magnet with the strongest magnetic effect is typically the poles, specifically the tips of the magnet where the magnetic field lines are most concentrated and the magnetic force is strongest.