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How long will magnetic water stay magnetized when take off the magnet?
Wiki User
∙ 11y ago
What you have here is a classic example of "begging the question". Your question carries with it the implied (but erroneous) statement that water can be magnetized. Neither the hydrogen nor the oxygen which combine to produce the water molecule can be magnetized but, in an intense magnetic field at close to its melting point, oxygen will demonstrate some paramagnetic properties. Magnetized water is a myth but it is used quite frequently to remove money from peoples' wallets.
Wiki User
∙ 11y ago
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How long do cheap magnets last compared to more expensive ones?
A permanent magnet will retain its magnetism unless it is affected by a strong outside magnetic or electrical force, or elevated temperatures. If they are not exposed to any of these conditions, permanent magnets will lose magnetism on their own, however this degradation is very slow, on the order of one percentage point every ten years or so.
How would you describe magnetic domains?
Each magnetic domain has a magnetic field. When an external magnetic field is applied, the magnetic domains will partially align, so the magnetic fields reinforce one another - instead of canceling one another, which is what happens when they are randomly distributed.
How does heat affect magnetism?
If one continously heats a particular magnet to high temperatures or long time or both, it loses it magnetism because the particles get excited and start forming no-magnetic arrangements.
Is a bar magnet a permanent magnet?
A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change. No, As I think a permanent magnet means they have abilities to hold the magnetism when they are magnetized. Such as Alnico permanent magnets, but in fact, they can be demagnetized,such as high temperature, hit each other,pulse waves, out magnetic field influence...What's more, different permanent magnetic material, have different abilities on holding magnetism,they can be used in different environments. you can find some details from some manufacturers website, to learn some knowledges.
When a magnet touch an iron nail does the nail becomes a temporary magnet?
The magnetic field would propagate through the material and extend itself for the length of the magnetic material in contact. As long as there is contact there is no pole present. When contact is broken the pole would be the opposite to the pole it was in contact with
Is a magnetized magnet heavier than an unmagnetized magnet?
An unmagnetized magnet is not a magnet. A magnet remains a magnet only as long as it remains magnetic,and ceases to be a magnet when its magnetization is lost.Be that as it may in any event, the state of magnetization of a sample of magnetic material, whether magnetizedor unmagnetized, has no bearing, neither ball nor thrust, on the weight of the magnetic material. In other words,weight is invariant under a transformation of the magnetized state.
Permanent and temporary magnets?
A temporary magnet is something that has been magnetized that won't stay a magnet for long, such as a paperclip that you have rubbed with a magnet. A Permanent magnet is usually a Lodestone that is found naturally or is manufactured by a company. Permanent magnets are always magnetic.
How does something become temporarily magnetized?
if you rub metal up against a magnet for a long enough period of time it will become temporarily magnetized.
When you use a bar to pick up small iron or steel why do you use the end of the magnet?
Magnets have a polarity which is generated by exposing them to a stronger magnetic field during manufacture. They can be polarized through any two faces on the magnet. Typically long skinny magnets are magnetized end to end. Flat magnets are magnetized side to side. Neodymium magnets are relatively strong, and frequently magnetized between flat faces. The magnetic field is very weak on the sides, and very strong at the ends (faces that were polarized).
How is an electro magnet different from a bar magnet?
An magnet is a material or object that creates a magnetic field. Bar magnets constantly create their magnetic field, while electromagnets are coils that only produce a magnetic field when an electric current passes through it.
How can you magnetize a nail?
A nail can be magnetized by being hit with a magnet 50 or so times, alternately, if a nail or other piece of metal which is attracted to magnets (these metals are called ferromagnetic by scientists) is left near a strong magnet for a long period of time (a few days to a few years depending on how strong the magnet is) it will become magnetic.
What happen when you place a magnetic card with a magnet?
short answer: bye-bye data long answer: the magnetic forces in the magnet scramble the magnetic domains on the magnetic card, thus killing the data on the card
How long do cheap magnets last compared to more expensive ones?
A permanent magnet will retain its magnetism unless it is affected by a strong outside magnetic or electrical force, or elevated temperatures. If they are not exposed to any of these conditions, permanent magnets will lose magnetism on their own, however this degradation is very slow, on the order of one percentage point every ten years or so.
What is the difference between a permanent magnet and a temporary magnet?
Temporary magnet: good example is an electromagnet. It maintains magnetic attraction only so long as an electric current surrounds it. Permanent magnet: most common. Example: bar magnet. Will maintain magnetic properties for quite a while, although they can be eventually demagnetized.
How long to magnetic bracelets last?
theres a theory that a magnet can lose its magnetic energy in about 400 years.
Is a permanent a magnet?
A permanent magnet is a magnet which will keep its magnetism for a very long time and is difficult to change. No, As I think a permanent magnet means they have abilities to hold the magnetism when they are magnetized. Such as Alnico permanent magnets, but in fact, they can be demagnetized,such as high temperature, hit each other,pulse waves, out magnetic field influence...What's more, different permanent magnetic material, have different abilities on holding magnetism,they can be used in different environments. you can find some details from some manufacturers website, to learn some knowledges.
How would you describe magnetic domains?
Each magnetic domain has a magnetic field. When an external magnetic field is applied, the magnetic domains will partially align, so the magnetic fields reinforce one another - instead of canceling one another, which is what happens when they are randomly distributed.
