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an iron can be demagnetised by ;-hammering it while facing east _west direction
-hitting it hard on the ground
-connecting it into an ac current while facing the east _west direction .
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∙ 14y ago
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Can a magnet attract to a demagnetized iron rod?
Yes. In this case, the magnet will induce magnetism in the iron, which is originally unmagnetized. Once the magnet is removed, the iron may return to an unmagnetized state; unless the magnetic field near the piece of iron is very strong.
What is the thing that weakens a magnet?
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
Can objects be demagnetized?
yes, an object can be demagnetized by 3 ways:hammeringheatingalternating current method
Does heating up a magnet make it stronger?
Heating up a magnet actually makes it weaker. A magnet can be completely demagnetized when heated past it's Curie temperature.
Why Soft Iron is suitable for preparing pole pieces in earphones as well as loudspeakers instead of steel?
Soft iron is suitable for preparing pole pieces in headphones as well as loudspeakers instead of steel because soft iron materials have high permeability and low coercive force. They are easily magnetized and demagnetized. Examples of soft magnetic material are silica-steel (Fe-97 and Si-3), Sandust (Al-5, Si-10, Fe-85). Soft iron materials have following characteristics:- Thin hysteresis loop. High permeability. Low coercivity. High susceptibility. Low hysteresis loss. Low eddy current loss. Whereas materials made up of steel have totally different properties i.e. High permeability and High hysteresis loss. Large hysteresis loop. High coercivity residual magnetism.
Which would likely demagnetized a magnetized iron nail?
Dropping it on a hard surface
Can a magnet attract to a demagnetized iron rod?
Yes. In this case, the magnet will induce magnetism in the iron, which is originally unmagnetized. Once the magnet is removed, the iron may return to an unmagnetized state; unless the magnetic field near the piece of iron is very strong.
Can styrofoam be demagnetized?
YES IT CAN!
How do you demagnetize a magnetized iron nail?
Rapidly rub the iron with the steel magnet for approximately 2 minutes for every pound of iron. Repeat on all sides of the piece of iron. Repeat process as needed until demagnetized.
Can magnets be temporary?
Electromagnets are temporary magnets made of iron usually that are created by passing a current through a wire wrapped around the iron. There are also ways of making temporary magnets out of ordinary iron objects that can later be demagnetized. I am not wise in the ways of these latter type of temporary magnets.
What will happen to the magnet if you put some electricity on it?
it will be demagnetized
How can a magnet become demagnetized?
A magnet can become demagnetized by exposure to high temperatures, strong magnetic fields, or physical impacts that disrupt the alignment of its magnetic domains. These factors can cause the magnetic domains to lose alignment, weakening or eliminating the magnet's magnetic field.
What happens when something is demagnetized?
It's no longer magnetic
Why aren't permanent magnets really permanent?
They can be demagnetized. Because nothing can be permanent :-)
How do you spell demagnetised?
In Australia and the UK, you would spell it "demagnetised". In the US, you would substitute a 'z' - "demagnetized".
What is the thing that weakens a magnet?
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
What happens to a magnet when heated up?
It gets demagnetized at about 170 degrees Fahrenheit, or 70 90 degrees Celsius.
