A circular loop carrying a current is replaced by an equivalent magnetic dipole. A point on the axis of the loop is in

Any point on the axis of a bar magnet (or a magnetic dipole) is called as a point at “End-on position”. In the given case, when the loop is replaced by a dipole, and hence the point on the axis of the loop will come at an axial position of dipole as well. So, the point can be considered at ‘end-on position’.

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