1.

You are given a bar magnet whos n and s places are not marked. How will you find that which side is north and which is south

Answer»

Repulsion is the SUREST test to find the poles of magnet. So ,used another bar magnet and you will find out its poles. You can't used IRON for these PURPOSE as it ATTRACTS from from both the poles.

Hope you will find it clear

Thanks



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