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Via heat: Heating up a magnet slightly will cause it to lose some of its magnetism, but on ... Via a demagnetizing magnetic field: Permanent magnets exhibit a characteristic ... Via shock: Shock ref...

How to Demagnetize a Magnet | Education.com


Jan 30, 2014 ... When we say that magnets can become demagnetized, we mean that ... could drop a magnetized nail several times (as refrigerator magnets ...

Magnet FAQs - Integrated Magnetics


How does a magnet's strength drop off with distance? .... Geomagnetic storms can cause changes of between 1% to 5% that last from hours to a day or so. .... may be needed in order to ensure that the magnet will not become demagnetized .

Q & A: heating magnet | Department of Physics | University of Illinois ...


As you heat further, individual spins within domains become more likely to point ... Cooling the material will cause magnetic domains to form again at the Curie ...

a magnet is demagnetized - Physics - Science Forums


Page 1 of 2 - a magnet is demagnetized - posted in Physics: A magnet is demagnetized. ... (There will be a decrease in chemical potential energy and an equal increase in thermal energy.) ... still magnetized magnet, somehow cause the still magnetized magnet to ..... First you're dropping cats upside down.

Is it possible to make the magnets lose it magnetic field permanently?


Mar 12, 2009 ... I know magnets can lose its magnetic properties if exposed to heat, but is ... But they can be demagnetized by bringing them up to their curie point (The ... if you drop them from a good height say 6 to 7 feet on concrete, they will ...

Demagnetizing a Steel Nail | The Classroom | Synonym


Nails and other steel objects can become magnetized when exposed to a magnet. ... However, exposure to strong magnetic fields cause many of these atoms to ...

Magnets and Magnetism | CK-12 Foundation


Magnets cause this maglev train to speed along its track. .... If you stroke an iron nail with a bar magnet, the nail will become a permanent (or at least ... Permanent magnets can be demagnetized, however, if they are dropped or heated to high ...

Scientific Explorer: Magnetism Explained: 3 Ferromagnetism


Oct 27, 2011 ... Ferromagnetic materials can be divided into "soft" materials like iron, which can ... However, even permanent magnets can be demagnetized and I will .... An impact with another large body like an asteroid could cause such a ... The magnetic domains become disrupted and the magnet loses its magnetism.

Methods of Magnetisation and Demagnetisation - Physics - David


Ships become magnetised in this way during manufacture, as the ... Many magnets can be demagnetised by placing them in a coil of wire ... Hammering or even dropping a powerful magnet may cause the loss of some of its magnetization. ... Im actually looking for “electrical method of magnetization and demagnetization”…

Popular Q&A
Q: Why would dropping a magnet cause it to become demagnetize?
A: There are molecules in a magnet that allow it to stick to other things. It has something to do with positive and negative charges or atoms in an atom cloud, but... Read More »
Source: wiki.answers.com
Helpful Resources

Why would dropping a magnet cause it to become demagnetize


There are molecules in a magnet that allow it to stick to other things. It has something to do with positive and negative charges or atoms in an atom.

Do magnets ever lose their magnetism? - PhysLink.com


1) Via heat: ferromagnet materials will lose their magnetism if heated above a ... You would have to re-magnetize the magnet again, either in a solenoid or with ... is transmitted through the material via a shock, such as being dropped or hit with  ...

Permanent magnets can lose their magnetism if they are dropped or ...


An answer to the question: Can something be turned into a magnet by banging it a specific way?

y does magnet get demagnetized in heat? | Yahoo Answers


Oct 1, 2006 ... whn heat is applied 2 magnet y does it gets demagnetised. ... Why does magnet repeatedly dropped becomes demagnetized? How can a ...