When a magnet is placed near a rectangular bar, the bar moved away. What can be concluded about the bar?
A
It is a magnet.
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B
It is made up of aluminium.
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C
It is made up of iron.
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D
It is not a magnet.
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Solution
The correct option is A It is a magnet. The rectangular bar is a magnet because it moved away from the magnet due to repulsion. Magnets cannot repel magnetic materials. Only magnets can repel magnets.