A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?  

 

Answer:

A freely suspended bar magnet always comes to rest in the North−South direction.

The north facing end of the magnet is its north pole, and the south facing end is its south pole.

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo