Physics, asked by l1atiprines3ant, 1 year ago

A permanent magnet becomes weak with time.why.

Answers

Answered by Anonymous
10
Permanent magnet loses its magnetism because of 4 reasons 1-when it is heated above a point called curie temperature 2-via shock 3-near a demagnetising field 4-when they are subjected to heat It loses its magnetising power and become weak in a duration of time.
Answered by Divyankasc
5
It is demagnetized when heated strongly, thrown from a height or hammered.
Previous Question
Next Question
Similar questions
History, 7 months ago
To whom did the chola rulers make land grants and why...
Math, 7 months ago
In the figure,line PQ and RS intersect each other at point 'O' .if POR:ROQ=5:7. Find all the angles...
Science, 7 months ago
How can filtration seprate fruit juice and Puplp...
Chemistry, 1 year ago
answer my question fast plz Give one example each of a liquid and a solid non-metal. Write blanced chemical equations for the following. (i) reaction of a non-metal with oxygen. (ii) reaction of a non-metal oxide with water. (iii) reaction of a non-metal oxide with a base.
Physics, 1 year ago
A tightly wound cylindrical coil of large number of turns of insulated copper wire is held horizontally. Giving reason explain what happens when (i) a magnetic compass needle is placed along the axis of the cylindrical coil and a electric cell is connected across it. (ii) a galvanometer is connected across the coil and a magnet is moved along the axis of the coil.
Social Sciences, 1 year ago
Sawai Man Singh Hospital conducts kidney transplant ops through...
Social Sciences, 1 year ago
The 15th World Sanskrit Conference organized jointly by Rashtriya Sanskrit Sansthan and Indian Association of Sanskrit Studies was recently held in...
Social Sciences, 1 year ago
Who is the current Air Chief Marshal of India...