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.
Magnet may show their magnetic properties virtually, temporarily or even act as permanent ones.
Remember, How a magnet can be demagnetised.
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.
We will get 2-north pole and 2-south pole.
Soon, when the electric power is switched off, the magnet will stop being functional.
Recall the type of magnets.
Hammering, heating and packing like poles in same direction help magnet to reduce its magnetic properties.
Earth also have magnetic field.
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