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fix: bridge circuit equation

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For U_AB, the reference voltage U_A has to be subtracted from the target
voltage U_B. It is not necessary to use absolute value bars.

Thanks-To: [email protected]
This commit is contained in:
Mario Haustein
2026-05-28 23:46:06 +02:00
parent f6a53ed8ec
commit 947bebea00
1 changed files with 2 additions and 2 deletions
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contents/slides/brueckenschaltung.md
+2 -2
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@@ -32,5 +32,5 @@ $\frac{U_A}{U} = \frac{R_1}{R_1 + R_2} \Rightarrow U_A = \frac{R_1}{R_1 + R_2} \
$\frac{U_B}{U} = \frac{R_3}{R_3 + R_4} \Rightarrow U_B = \frac{R_3}{R_3 + R_4} \cdot U = \frac{\qty{10}{\kilo\ohm}}{\qty{10}{\kilo\ohm} + \qty{1}{\kilo\ohm}} \cdot \qty{11}{\volt} = \qty{10}{\volt}$
</fragment>
<fragment>
$U_{AB} = |U_A - U_B| = |\qty{1}{\volt} - \qty{10}{\volt}| = \qty{9}{\volt}$
</fragment>
$U_{AB} = U_B - U_A = \qty{10}{\volt} - \qty{1}{\volt} = \qty{9}{\volt}$
</fragment>