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| author | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
|---|---|---|
| committer | prashantsinalkar | 2018-02-03 11:01:52 +0530 |
| commit | 7bc77cb1ed33745c720952c92b3b2747c5cbf2df (patch) | |
| tree | 449d555969bfd7befe906877abab098c6e63a0e8 /3830/CH7/EX7.9/Ex7_9.sce | |
| parent | d1e070fe2d77c8e7f6ba4b0c57b1b42e26349059 (diff) | |
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Diffstat (limited to '3830/CH7/EX7.9/Ex7_9.sce')
| -rw-r--r-- | 3830/CH7/EX7.9/Ex7_9.sce | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/3830/CH7/EX7.9/Ex7_9.sce b/3830/CH7/EX7.9/Ex7_9.sce new file mode 100644 index 000000000..0641c8d9f --- /dev/null +++ b/3830/CH7/EX7.9/Ex7_9.sce @@ -0,0 +1,26 @@ +// Exa 7.9
+
+clc;
+clear;
+
+// Given
+
+// A platinum resitance thermometer
+R1 = 120; // resistance in ohms at 25 °c
+T1 = 25; // temperature in °c
+T2 = 75; // temperature in °c
+Alpha_T = 0.00392; // temperature coefficient of resistance at 25°c
+R3 = 180; // resistance in ohms at unknown temp T3
+
+// Solution
+
+R2 = R1*(1+Alpha_T*(T2-T1)); // resistance at 75 °c
+printf(' The resistance at 75 °c = %.2f ohms \n',R2);
+
+// now, to get T3 corresponding to R3= 180 ohms
+
+// R3 = R2*(1+Alpha_T*(T3-T1));
+// Rearranging above equation to get T3 as
+T3 = (R3/R1 -1)/Alpha_T + T1;
+
+printf(' The temperature corresponding to resistance 180 ohms = %.2f °c \n',T3);
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