Question

one of the two identical bars is magnetised . how will you find out , without using any aid . which one of then is magnetised

Answer 1

If on bringing different ends of the two bars close to each, they produce repulsion in some case, then both the iron bars are magnetised. Otherwise, one bar is magnetised and the other is simply iron bar. To find out which one is magnetised, call one bar as A and the other as B. Place bar B on table. Bring one end of bar A
close to the one end of bar B. The bar A will experience attraction. Now, move the bar A to the middle of bar B. If A experiences no force, then A is iron bar and B is magnetised. On the other hand, if bar A experiences force, then A is magnetised and B is iron bar.
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Answer 2

Answer:

we can test their magnetism

Explanation:

If we bring them close and the iron piece gets attracted then the magnet is magnetised. If not, then its not magnetised

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