Правка разделов «Statement», «Answer»
en/9.4.5.md
+3 −2
| @@ -1,6 +1,7 @@ | |||
| ### Statement | |||
| − | $9.4.5.$ | ||
| + | $9.4.5.$ A flat horizontal border divides the space into two parts. In the lower part, the magnetic field induction | ||
| + | is zero. Prove that the homogeneous field near the surface in the upper part is directed parallel to it. | ||
| ### Solution | |||
| Obviously, the divergence of the field in the lower part of the space is zero, therefore it is also zero at the border, therefore: | |||
| $$B_{\perp_{up}} = B_{\perp_{down}} = 0$$ | |||
| Since there is a field from above, it is exactly parallel to the border. | |||
| @@ -10,4 +11,4 @@Solution | |||
| #### Answer | |||
| − | [Insert a concise answer or boxed result] | ||
| + | Q.E.D. | ||
| @@ -1,6 +1,7 @@ | |||
| ### Statement | ### Statement | ||
| $9.4.5.$ |
$9.4.5.$ A flat horizontal border divides the space into two parts. In the lower part, the magnetic field induction | ||
| is zero. Prove that the homogeneous field near the surface in the upper part is directed parallel to it. | |||
| ### Solution | ### Solution | ||
| Obviously, the divergence of the field in the lower part of the space is zero, therefore it is also zero at the border, therefore: | Obviously, the divergence of the field in the lower part of the space is zero, therefore it is also zero at the border, therefore: | ||
| $$B_{\perp_{up}} = B_{\perp_{down}} = 0$$ | $$B_{\perp_{up}} = B_{\perp_{down}} = 0$$ | ||
| Since there is a field from above, it is exactly parallel to the border. | Since there is a field from above, it is exactly parallel to the border. | ||
| @@ -10,4 +11,4 @@Solution | |||
| #### Answer | #### Answer | ||
| [Insert a concise answer or boxed result] | Q.E.D. | ||