Soft iron pieces are placed across the ends of bar magnet when stored. What are such pieces called?
A
Magnetic preservatives
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B
Magnetic keepers
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C
Magnetic refractors
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D
Magnetic reflectors
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Solution
The correct option is B Magnetic keepers Soft iron pieces which are placed across the ends of bar magnet when stored are called magnetic keepers. These pieces of iron fit over the magnet's poles, helping it retain its magnetism during long period of storage.