In which direction would a compass needle point when placed at the cen – InterviewSolution

InterviewSolution

1.	In which direction would a compass needle point when placed at the centre of the soft iron ring shown in the figure below ? Substantiate your answer with reason
Answer» Solution :(i) What is net magnetic field at the CENTRE of the ring ? (ii) Compare the ABILITY of soft iron to allow the magnetic lines of force to PASS through it with that of air. Which DIRECTION does a magnetic needle point in the absence of an external magnetic field ?

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