Unterschiede

Hier werden die Unterschiede zwischen zwei Versionen angezeigt.

@@ Zeile 1: / Zeile 1: @@
+{{tag>magnetic_voltage exam_ee2_SS2021}}{{include_n>1210}}
+#@TaskTitle_HTML@##@Lvl_HTML@#~~#@ee1_taskctr#~~ Magnetic Voltage \\
+<fs medium>(written test, approx. 6 % of a 120-minute written test, SS2021)</fs> #@TaskText_HTML@#
+The following images show cross-sections of electrical cables. \\
+A closed path is shown as a dashed line. The magnetic voltage $\theta$ on these paths shall be analyzed. \\
+The following values are given for the currents:
+  * $I_1 = 5 {~\rm A}$
+  * $I_2 = 2 {~\rm A}$
+  * $I_3 = 1 {~\rm A}$
+  * $I_4 = 4 {~\rm A}$
+{{drawio>ee2:jfZlmSUcgHSQVop5_question1.svg}}
+Specify which magnetic voltages $\theta_{(1)}$, $\theta_{(2)}$, and $\theta_{(3)}$ result. \\
+Note the direction of the path in each case!
+#@HiddenBegin_HTML~jfZlmSUcgHSQVop5_11,Path~@#
+For the resulting current the direction of the path has to be considered with the right-hand rule:
+  * $I_{(1)} = +I_2 - I_1 - I_3 \quad \rightarrow \quad \theta_{(1)} = 2 {~\rm A} - 5 {~\rm A} - 1 {~\rm A} $
+  * $I_{(2)} = +I_3 + I_4 - I_1 \quad \rightarrow \quad \theta_{(2)} = 1 {~\rm A} + 4 {~\rm A} - 5 {~\rm A} $
+  * $I_{(3)} = +I_3 - I_4 - I_2 \quad \rightarrow \quad \theta_{(3)} = 1 {~\rm A} - 4 {~\rm A} - 2 {~\rm A} $
+#@HiddenEnd_HTML~jfZlmSUcgHSQVop5_11,Path~@#
+#@HiddenBegin_HTML~jfZlmSUcgHSQVop5_12,Result~@#
+\begin{align*}
+\theta_{(1)} &= -4 {~\rm A} \\
+\theta_{(2)} &= 0 {~\rm A} \\
+\theta_{(3)} &= -5 {~\rm A} \\
+\end{align*}
+#@HiddenEnd_HTML~jfZlmSUcgHSQVop5_12,Result~@#
+#@TaskEnd_HTML@#

magnetic voltage exam ee2 ss2021