Give a experimental evidences of heating demagnetises a magnet 

Asked by Pp998706 | 15th Feb, 2020, 08:15: PM

Expert Answer:

Magnet can be demagnetised on heating. 
Magnet will lose all its magnetic properties when heated at temperature of about 1390 ºF (770 ºC)
After heating to such a high temperature and keeping it in east - west direction, it will get permanently demagnetised. 

Answered by Shiwani Sawant | 17th Feb, 2020, 11:02: AM