How will you test whether a given rod is made of iron or copper?
[Hint: Iron rod gets magnetized when placed near a bar magnet by magnetic induction, while copper rod does not get magnetized]

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Solution

To test whether a given rod is made of iron or copper, simply place both the rods near a bar magnet. The iron rod gets magnetized when placed near a bar magnet due to magnetic induction while the copper rod does not get magnetized.

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