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en/9.3.14.md
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| + | ### Statement | ||
| + | |||
| + | $9.3.14.$ [Insert the problem statement] | ||
| + | |||
| + | ### Solution | ||
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| + | |||
| + | Under the influence of an external field, a magnetic moment of magnitude is induced in a paramagnet $M=\chi H$,where $H$ - | ||
| + | magnetic intensity associated with $B$ | ||
| + | by ratio $B = \mu \mu_0 H$, | ||
| + | due to small size of $\chi$, $$M\approx \frac{B_0\chi}{\mu_0}$$ | ||
| + | |||
| + | As we know, the disk field at its center can be replaced by the ring current field $I = Mh$, | ||
| + | which is equal to $$B=\frac{\mu_0 I}{2R}$$, this is the desired change in the field, we substitute:$$\Delta B=\frac{B_0\chi h}{2R}$$ | ||
| + | |||
| + | #### Answer | ||
| + | |||
| + | [Insert a concise answer or boxed result] | ||
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| ### Statement | |||
| $9.3.14.$ [Insert the problem statement] | |||
| ### Solution | |||
| Under the influence of an external field, a magnetic moment of magnitude is induced in a paramagnet $M=\chi H$,where $H$ - | |||
| magnetic intensity associated with $B$ | |||
| by ratio $B = \mu \mu_0 H$, | |||
| due to small size of $\chi$, $$M\approx \frac{B_0\chi}{\mu_0}$$ | |||
| As we know, the disk field at its center can be replaced by the ring current field $I = Mh$, | |||
| which is equal to $$B=\frac{\mu_0 I}{2R}$$, this is the desired change in the field, we substitute:$$\Delta B=\frac{B_0\chi h}{2R}$$ | |||
| #### Answer | |||
| [Insert a concise answer or boxed result] | |||