Figure shows the variation of intensity of magnetisation vecM versus the applied magnetic field intensity vecH for two materials A and B: (a) Identify the materials A and B. (b) Why does the material B, have a larger susceptibility than A for a given field at constant temperature ?

Figure shows the variation of intensity of magnetisation vecM versus t

1.	Figure shows the variation of intensity of magnetisation vecM versus the applied magnetic field intensity vecH for two materials A and B: (a) Identify the materials A and B. (b) Why does the material B, have a larger susceptibility than A for a given field at constant temperature ?
Answer» Solution :(a) Material A is DIAMAGNETIC because its magnetisation is negative Material B is PARAMAGNETIC having positive magnetisation . (b) Magnetic susceptibility ` x = M/H` and its VALUE is given by slope of M - H CURVE. As slope of curve for material B is greater, hence B has a large susceptibility than A for a given FIELD at constant temperature.

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Figure shows the variation of intensity of magnetisation vecM versus the applied magnetic field intensity vecH for two materials A and B: (a) Identify the materials A and B. (b) Why does the material B, have a larger susceptibility than A for a given field at constant temperature ?

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