Repeated striking, heating, or using AC current will demagnetize a magnet. A small magnetic field may remain.
It can be demagnetised by:
-dropping it many times
-hammering it many times
-heating it over a flame
Heat and impact
some people believe that we could be magnetic but no human has found the means of perfecting a human magnet.
No
no
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
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 .
Heating up a magnet actually makes it weaker. A magnet can be completely demagnetized when heated past it's Curie temperature.
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.
A magnet can be demagnetized by striking it many times, heating it, or cooling it. All of these randomize the domains.
YES IT CAN!
it will be 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.
It's no longer magnetic
They can be demagnetized. Because nothing can be permanent :-)
Dropping it on a hard surface
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.
In Australia and the UK, you would spell it "demagnetised". In the US, you would substitute a 'z' - "demagnetized".
Magnets are "demagnetized" by extreme heat. If you boil a magnet in water, the heat will demagnetize the magnet.
It gets demagnetized at about 170 degrees Fahrenheit, or 70 90 degrees Celsius.
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 .
The relative coercitivity of a material helps to magnetize and demagnetised a substance. If the coercitivity id low then the material can be easily demagnetized and vice versa. A substance can be magnetized by creating magnetic filed of opposite charges and demagnetized by creating same filed of charges.