A single keeper can protect a horseshoe magnet but not a bar magnet.
A
True
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B
False
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Solution
The correct option is A True
A magnet keeper is a bar made of soft iron or steel which is placed across the poles of a permanent magnet to help preserve the strength of the magnet.
Only one keeper is required to store the horseshoe magnet.
Two soft iron strip is required to store the bar magnet. As two bar magnets are placed with their north and south poles in opposite directions.