In general, no.
at circumference
Yes it does!
No the temperature doesn't the size does.
A permanent magnet (i.e. not an electromagnet) will be demagnetised by heating it.
A magnet will not affect the Mirena IUD.
yes but it depends on the type of magnet and how strong it is
no
NO!!! the strength of magnet is not affected by temperature
A permanent magnet can affect magnets and electromagnets.
it dosent make the magnet stick anymore
Magnet, impacts the video or audio reel due to its magnetic fields
No, but if you leave the magnet in lemon juice long enough it will start to corrode.