The figure gives experimentally measured B vs. H variation in a ferromagnetic material. The retentivity,…

The figure gives experimentally measured $\mathrm{B}$ vs. $\mathrm{H}$ variation in a ferromagnetic material. The retentivity, coercivity and saturation, respectively, of the material are:

1. $1.5\text{T},50\mathrm{A}/\mathrm{m}$ and $1.0\text{T}$
2. $1.5\text{T},50\mathrm{A}/\mathrm{m}$ and $1.0\text{T}$
3. $150\mathrm{A}/\mathrm{m},1.0\mathrm{T}$ and $1.5\text{T}$
4. $1.0\text{T},50\mathrm{A}/\mathrm{m}$ and $1.5\text{T}$

Solution

$\mathrm{x}=\mathrm{r}\mathrm{e}\mathrm{t}\mathrm{e}\mathrm{n}\mathrm{t}\mathrm{i}\mathrm{v}\mathrm{i}\mathrm{t}\mathrm{y}$
$\mathrm{y}=\mathrm{c}\mathrm{o}\mathrm{e}\mathrm{r}\mathrm{c}\mathrm{i}\mathrm{v}\mathrm{i}\mathrm{t}\mathrm{y}$
$\mathrm{z}=\mathrm{s}\mathrm{a}\mathrm{t}\mathrm{u}\mathrm{r}\mathrm{a}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}\mathrm{}\mathrm{m}\mathrm{a}\mathrm{g}\mathrm{n}\mathrm{e}\mathrm{t}\mathrm{i}\mathrm{z}\mathrm{a}\mathrm{t}\mathrm{i}\mathrm{o}\mathrm{n}$

Asked in: JEE Main 2020 (07 Jan Shift 2)

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