Demagnetisation


 
 
Concept Explanation
 

Demagnetisation

A magnet can lose its magnetism and this process is known as demagnetisation and the magnet is said to be demagnetised.. This happens due to the following activities:

1. Dropping from a height  

2. Hitting with a hammer        

3. Applying heat

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Sample Questions
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Question : 1

Which of the following are correct :

(a) Bar magnets are always stored in pairs with their unlike poles on the same side.

(b) Horseshoe-shaped magnet, are always stored by a single piece of soft iron is kept touching both poles of the magnet.

(c) Horseshoe-shaped magnet, are always stored by a single piece of wood is kept touching both poles of the magnet.

Right Option : A
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Question : 2

Magnetism of a magnet is lost by  _______________________

Right Option : D
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Question : 3

A magnet can lose its magnetism and this process is known as ______________________.

Right Option : B
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