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# Hysteresis: Solved Example Problems

Physics : Magnetism and Magnetic Effects of Electric Current: Hysteresis : Solved Example Problems

## Hysteresis: Solved Example Problems

### EXAMPLE 3.13

The following figure shows the variation of intensity of magnetisation with the applied magnetic field intensity for three magnetic materials X, Y and Z. Identify the materials X,Y and Z. ### Solution

The slope of M-H graph measures the magnetic susceptibility, which is

χm = M / H

Material X: Slope is positive and larger value. So, it is a ferromagnetic material.

Material Y: Slope is positive and lesser value than X. So, it could be a paramagnetic material.

Material Z: Slope is negative and hence, it is a diamagnetic material.

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