A bar of an iron-silicon alloy having the B-H behavior shown in Figure 20.29 is inserted within

Question:

A bar of an iron-silicon alloy having the B-H behavior shown in Figure 20.29 is inserted within a coil of wire 0.40 m long and having 50 turns through which passes a current of 0.1 A.
(a) What is the B field within this bar?
(b)At this magnetic field,
(i) What is the permeability?
(ii) What is the relative permeability?
(iii)What is the susceptibility?
(iv)What is the magnetization?