Q:
How do I demagnetize something?
A:
Quick Answer
A magnet can be demagnetized with heat, hammering or an electric current. A metal behaves as a magnet when all its units or domains are aligned in one direction. When this alignment is destroyed and made random, the magnetism is also destroyed.
Continue Reading
Credit:
Kyle May
CC-BY 2.0
Full Answer
When heating a magnet, it must be heated for a long duration. Hammering should be done at both poles of the magnet. When an AC current is passed through a solenoid, a magnetic field is created around the object, which destroys the alignment of domains in the object to be demagnetized. The object to be demagnetized can also be rubbed vigorously in both directions with a metallic object, which can cause it to lose its magnetic properties.
Learn more about MagnetismSources:
Related Questions
-
Q:
What is the pole strength of each piece when a bar magnet is cut into two equal halves?
A: The pole strength of each piece when a bar magnet is cut into two equal halves perpendicular to its length is the same as the pole strength of the original... Full Answer >Filed Under: -
Q:
Why is the Earth like a magnet?
A: Earth is like a giant magnet in several ways. Not only does it have a magnetic north and south pole that act similarly to the poles on bar magnets, but the... Full Answer >Filed Under: -
Q:
Will a magnet stick to aluminum?
A: Under normal circumstances, a common magnet does not stick to aluminum. Under the right conditions, however, it is possible to get a strong magnet to inter... Full Answer >Filed Under: -
Q:
Is lead magnetic?
A: Lead is not magnetic in the sense that it is neither attracted to nor repelled by a magnet. Lead cannot be charged up via contact with a magnet unlike what... Full Answer >Filed Under:
