Abstract
This article presents the numerical solution for the magnetic field of a current-carrying circular turn at any point. Textbook solutions usually confine themselves to the solution on the axis of the turn because the on-axis Biot–Savart law integration is easy to do in closed form. As the knowledge and use of hand-held calculators and computers has increased, the numerical solution of this problem for off-axis points has become possible by students in the introductory calculus-based course. A good way to do this problem is in the physics laboratory where actual measurements can be compared with the values obtained from a numerical solution.
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