Discussion :: Physics
- Magnetic keepers are used to protect magnets from :
|
A.
Earth's magnetic field |
|
B.
Effect of other magnets |
|
C.
Self-demagnetization |
|
D.
Demagnetization due to heating |
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Answer : Option C
Explanation :
Magnetic keepers are soft iron bars placed at either end of the pair of magnets. It is used to avoid self-demagnetisation of magnets.
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