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--- eee1_lab:resistance-measurement [2026/03/08 17:00] – created mexleadmin
+++ eee1_lab:resistance-measurement [2026/03/08 17:04] (current) – mexleadmin
@@ Line 13: / Line 13: @@
 === Direct resistance measurement ===
 \\
-Determine the nominal and measured values of the resistance for $R_{~\rm 1}$ (brown, green, orange), $R_{~\rm 2}$ (yellow, violet, red), $R_{~\rm 3}$ (red, violet, red) and the incandescent lamp $R_{~\rm L}$. Also measure the approximate resistance $R_{~\rm K}$ of your body from your right to your left hand.
+Determine the nominal and measured values of the resistance for $R_{\rm 1}$ (brown, green, orange), $R_{\rm 2}$ (yellow, violet, red), $R_{\rm 3}$ (red, violet, red) and the incandescent lamp $R_{\rm L}$. Also measure the approximate resistance $R_{\rm K}$ of your body from your right to your left hand.
 {{drawio>Table-1_V2.png}}
@@ Line 19: / Line 19: @@
 \\
-How do you explain the deviation between $R_{~\rm L,nominal}$ and $R_{~\rm L,meas}$?
+How do you explain the deviation between $R_{\rm L,nominal}$ and $R_{\rm L,meas}$?
 <wrap onlyprint> \\ \\ \\ \\  </wrap>\\
 \\
 \\
-What consequences can $R_{~\rm K}$ have?
+What consequences can $R_{\rm K}$ have?
 <wrap onlyprint> \\ \\ \\ \\  </wrap>\\
 \\
 \\
-Now determine the series and parallel connections of resistors $R_{~\rm 1}$, $R_{~\rm 2}$ and $R_{~\rm 3}$. \\
+Now determine the series and parallel connections of resistors $R_{\rm 1}$, $R_{\rm 2}$ and $R_{\rm 3}$. \\
 Specify the formulas used: \\
-$R_{~\rm serial}$ =  \\
+$R_{\rm serial}$ =  \\
 <wrap onlyprint> \\ \\  </wrap> \\
-$R_{~\rm parallel}$ (= $R_{~\rm a}$ || $R_{~\rm b}$) =
+$R_{\rm parallel}$ (= $R_{\rm a}$ || $R_{\rm b}$) =
 <wrap onlyprint> \\ \\  </wrap> \\
@@ Line 44: / Line 44: @@
 **Ohm's law: In an electrical circuit, the current increases with increasing voltage and decreases with increasing resistance.** \\
-\[ I=\frac{U}{R} \]
+$$ I=\frac{U}{R} $$
 Build the measuring circuit shown in <imgref Fig-1_V1> for each of the three resistors and set the voltage on the power supply to $~{\rm 12} ~{ V}$.
@@ Line 51: / Line 51: @@
 <imgcaption Fig-1_V1 | Indirect resistance measurement> </imgcaption>
-Measure $U_{~\rm n}$ [V] and $I_{~\rm n}$ [mA]. Calculate $R_{~\rm n}$ [k$\Omega$] from these values.
+Measure $U_{\rm n}$ [V] and $I_{\rm n}$ [mA]. Calculate $R_{\rm n}$ [k$\Omega$] from these values.
 {{drawio>Table-3_V1-indirect-measurement.png}}
 <tabcaption Table-3_V1 | Indirect resistance measurement> </tabcaption>