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Magnetic Field of Wire Calculatorr
Calculate magnetic flux density around a long straight conductor
Instructions: Enter the electric current ($I$, in Amperes) and the perpendicular radial distance ($r$, in meters) from the wire to compute the magnetic field ($B$).
Electromagnetic Parameters
Calculation Results
⚠️ For electromagnetism and physics education reference only. Assumes an infinitely long straight wire in free space/vacuum.