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Why does a permanent magnet weaken when you drop or heat it

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Dropping, hitting, or heating a magnet will disturb the magnetic field-the spin of ... Does hitting a magnet weaken its magnetic force? ... To increase the strength of a magnet you need to stack it between two stronger magnets or electromagnets.

Learn Fair Science Topics 2011

www.wfbschools.com/cms_files/resources/Learn Fair Science Topics1.pdf

How does the color of a material affect its ability to absorb heat? How does ... Does hitting a magnet weaken its magnetic strength? How is the strength of a ...

How to Demagnetize a Magnet | Education.com

www.education.com/science-fair/article/demagnetize/

Jan 30, 2014 ... Learn how to demagnetize a magnet and how physics can explain this ... groups with their north and south ends lined up with Earth's magnetic pole. ... Use the staples to confirm that all your nails are about the same strength.

Can I weaken a neodymium super-magnet? - decrease strength | Ask ...

ask.metafilter.com/235019/Can-I-weaken-a-neodymium-supermagnet

Hitting them will give you a bunch of magnetic shards. Freezing ... But yes, heating those kinds of magnets up will reduce their magnetism.

What affects the strength of a magnet?

my.execpc.com/~rhoadley/magstren.htm

The material will also determine how its flux is affected by temperature, and how ... magnetic field strength in Oersted, or the point at which the magnet becomes ...

Questions and Answers - What happens when a magnet is cut in two ...

education.jlab.org/qa/permmagnet_03.html

Does the strength of an electromagnet depend on the number of turns of wire? ... You can think of a magnet as a bundle of tiny magnets, called magnetic ... If they are in a random orientation, with their fields pointing all over the place, they ...

FAQ:How do you demagnetize a magnet - NdFeB Magnet

www.x-magnet.net/faq.html

Heating a magnet past its Curie point will destroy the long range ordering. ... reduce the strength of the (electro-)magnetic field, the magnetism of the magnet can ... becomes a strong magnet in the present of the current but weaken drastically ...

Is Earth held in its orbit by magnetic forces? - Nasa

www-spof.gsfc.nasa.gov/stargaze/magnQ&A2.htm

How do Magnetic Reversals affect Animal Migrations? ... Space Radiation and our weakening magnetic field ... "If the earth is a giant magnet, why doesn't all iron stick to it?" ... Here B at some point is the force on a magnetic pole of unit strength, IF it were placed at the point, and E is the force on an electric charge...

loss of magnetism in permanent magnets | All About Circuits

forum.allaboutcircuits.com/threads/loss-of-magnetism-in-permanent-magnets.58689/

If so, Why does a permanent magnet motor not lose it's magnetism? ... of a percent over a year if held in a magnetic field, but for sure it is not rapid. ... The modern rare earth magnets don't have much problem with reduced field strength, not like the ... the magnets, as they would lose some of their magnetism and weaken the ...

Temperature and Neodymium Magnets - K&J Magnetics Blog

www.kjmagnetics.com/blog.asp?p=temperature-and-neodymium-magnets

Temperature issues and neodymium magnets can be a complex subject. In this article ... Magnetic Strength: Throughout this article, magnetic strength is the key measure. ... It's also sometimes called BH, the operating slope, or the load line.

Popular Q&A
Q: How does hitting a magnet weaken its magnetic strength—or does it...
A: And the reason is this: In a magnet the electrons in the atoms are spinning in the same direction, which gives a magnet its magnetic domain—north or south—and c... Read More »
Source: www.yesmag.ca
Q: Does dropping or hitting a magnet weaken the strength of the magn...
A: Dropping, hitting, or heating a magnet will Read More »
Source: www.chacha.com
Helpful Resources

Re: does hitting a magnet weaken its magnetic strength

www.madsci.org

Re: does hitting a magnet weaken its magnetic strength. Date: Tue Feb 4 22:48: 38 2003. Posted By: Dr. Fred Jeffers, Staff, Magnetic Recording Research, ...

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

van.physics.illinois.edu

At some point, in between the weakening of the overall magnetism and the ... Cooling the material will cause magnetic domains to form again at the Curie ... Usually the strength of a permanent magnet does grow slightly as it is cooled. ... Yes, the neodymium magnet will lose its magnetism when heated above its Curie point.

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

www.instructables.com

Mar 12, 2009 ... I know magnets can lose its magnetic properties if exposed to heat, but is ... it loose its magnetic field. repetitive shock (as in hitting it with a hammer) .... It might still retain a weak magnetism, but it will be much less than the original strength. ... and the relative motion of other magnetic fields can weaken t...