Answers

2016-03-05T10:46:49+05:30
Yes,  permanent magnet can lose its magnetism when heated above the curie temp.
1 5 1
2016-03-05T10:53:16+05:30
Magnets lose magnetism on heating because of heat capacity the charged particles of magnet will become uncharged and loses its capacity.
   
 
1 5 1