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Draw a graph ...

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Draw a graph between intensity of magnetization and magnetic intensity of non - magnetized ferromagnetic substance and explain magnetic retentivity and magnetic coercivity from graph. What is hysteresis with graph?

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A

is the area under the graph of the intensity magnetization in ferromagnetic material versus magnetizing field intensity,

V

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(\to I)

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(\to H)

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Q. Distinguish between diamagnetic and ferromagnetic substances in respect of (i) Intensity of Magnetisation, (ii) behaviour in a non-uniform magnetic field and (iii) suspectibility.

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