An iron rod of 4 cm2 cross-sectional area is parallel to a magnetising field of 103 A/m. If the magnetic flux passing through it is 4 × 10-4 Wb, then find out permeability, relative permeability and magnetic susceptibility of the substance.
A = 4cm2 = 4 × 10-4 m2 Magnetising field H = 103A/ m Magnetic flux ϕ = 4 × 10-4 Wb ϕ = BA
magnetic susceptibility Xm = μr - 1 = 796.17 - 1 = 795.17 ≈ 795
