Determine the magnetic field strength (in A/m) of a material when the intensity of magnetization of the material is 0.084 Amp/m and the magnetic susceptibility of the material is 0.0012

• A. 70
• B. 0.07
• C. 0.7
• D. 700

Answer: (A)

The magnetic susceptibility expresses the responsiveness of a material to the applied magnetic field and can vary with the external applied magnetic field.
The symbol for magnetic susceptibility is χ and the formula is
χ = M/H
Where M = Magnetization = 0.084 Amp/M
H = Magnetic field intensity = ?
∴ Magnetic field Intensity H is
H = M/χ
H = 0.084 ⁄ 0.0012
H = 70 A/m