A square magnetic core has a mean path length of 50 cm and a cross-sectional area of 100 cm2. n = 100 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. 1. If the magnetic flux o = 5x10-3 Wb in the core, a) What is the magnetic flux density B? b) What is the magnetic field strength H value for 25°C temperature? c) What is the MMF value for 25°C temperature?

Ampere's Law states that "for any closed loop path, the sum of the length elements times the magnetic field in the direction of the length element is equal to the permeability times the electric current enclosed in the loop.”

To design the electrical and electronic system, the current density is an important factor. The designer current level is the factor on which the circuit performance depends and with the help of the dimensions of the conducting current the current densit…