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84.What will be the magnetic field at the centre of an n sided polygon, if centre to vertex distance is a and the current is I? Also find the limting value of magnetic field as new approaches a large value.

Answer» 84.What will be the magnetic field at the centre of an n sided polygon, if centre to vertex distance is a and the current is I? Also find the limting value of magnetic field as new approaches a large value.


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