Remember, How a magnet can be demagnetised.
Earth also have magnetic field.
Hammering, heating and packing like poles in same direction help magnet to reduce its magnetic properties.
We will get 2-north pole and 2-south pole.
When this iron nail will be touched to the other iron nails, the magnetic properties in the iron nail because of the permanent magnet will attract the other iron nails as well.
Soon, when the electric power is switched off, the magnet will stop being functional.
In order to make a permanent magnet, you just need a source of strong magnetic force and a substance that will be subjected to it resulting in the formation of a magnet with permanent magnetic properties.
Recall the type of magnets.
Magnet may show their magnetic properties virtually, temporarily or even act as permanent ones.
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