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Why does a compass needle show deflection when brought near a current carrying conductor?



A current carrying conductor produces a magnetic field around it and the compass needle itself is a tiny magnet

So, when a compass needle is brought near a current carrying conductor, due to the effect of the magnetic field around it, the compass needle shows deflection.

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Maninder Singh

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