(Solved): Instructions: Answer All Questions Question 1. A square magnetic core has a mean path length of 55 ...

Instructions: Answer All Questions Question 1. A square magnetic core has a mean path length of $55\mathrm{cm}$ and a crosssectional area of $150{\mathrm{cm}}^2$. A 200 turn coil of wire is wrapped around one leg of the core. The core is made of a material having the magnetization curve shown in fig 2. Find: a) How much current is required to produce $0.012\mathrm{Wb}$ of flux in the core? b) What is the cores relative permeability at that current level? c) What is its reluctance? Figure 2: A detailed magnetization curve for a typical piece of steel. (15 marks)