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Questions  >>  CBSE XII  >>  Physics  >>  Magnetism and matter
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Q)

Explain quantitative on the basis of domain picture the reversibility of a ferromagnet?

$\begin{array}{1 1} \text{Magnetization is removed when the external field is removed } \\ \text{Magnetization persists even when the external field is removed } \\ \text{Magnetization attains its peak value when the external field is removed } \\ \text{Magnetization attains its lowest value when the external field is removed } \end{array} $

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A)
Solution :
This can be well explained by using the hysteresis curve .
It is clear that the magnetization persists even when the external field is removed.
This clearly gives an idea of irreversibly of a ferro magnet .
Answer : $ \text{Magnetization persists even when the external field is removed } $
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