Text: The Biot-Savart Law states that a single-turn circular loop with a diameter of 1-m will generate a magnetic field at its geometric center equal to the loop current. So, a round 1-m diameter loop carrying 1 A of current with two turns will produce a field of 2 A/m at its center. For a square loop, the correction factor is 4/(p=2), or 90%. A square 1-m loop with two turns carrying 1 A of current will, therefore, generate a 1.8 A/m field at its center. Magnetic fields, however, are usually expressed in gauss, teslas, and oersteds. See ³Handy Conversions,² this page, for help in converting units. http://www.e-insite.net/tmworld/index.asp?layout=article&articleid=CA187497

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