A current carrying circular conductor loop produces a magnetic field along its axis which is defined by Biot Savart’s law.
B = μ_ο / 2   x   I . R² / (R²+x²)^3/2
Where R=Radii of the loop, x =Distance from axis through center.
In present setup, three conductor loops of different radii mounted on a special loop holder is provided for investigation. The magnetic field is measured using axial hall probe. A high current power supply is provided to produce the magnetic field.