Observation of the impact of the surface magnetic charges on the magnetic induction inside and outside a simple of the magnetic fluid, plased in an external magnetic field

An NMR method was used to measure the magnetic induction B 1 inside and both B 2 and B 3 outside a simple of magnetic fluid, placed in an external magnetic field with induction B 0. The measurements showed that there was a magnetic induction inside the simple: B 1 = B 0 + ( λ - K ) µ 0 M, where M - magnetization, λ - the constant of effective field, K - demagnetization factor, outside the simple near the surface of normal B 0: B 2 = B 0 + ( λ + + K ) µ 0 M, near the surface of parallel B 0: B 3 = B 0 - Kµ 0 M. Thus, when the surface of magnetic passes the normal B 0 inside the simple, induction reduces on 2 Kµ 0 M, and while passing outside, the induction increases on 2 Kµ 0 M, this discrepancy to the Gauss theorem may by explained by the presence of the surface magnetic charges. The induction decreases on λµ 0 M at the exit through the side surface of the simple, and it increases on λµ 0 M at the entrance of it. It may be explained by the effect of the nanoparticles magnetic flow orientation.