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Diffstat (limited to '3871/CH10/EX10.2/Ex10_2.sce')
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1 files changed, 27 insertions, 0 deletions
diff --git a/3871/CH10/EX10.2/Ex10_2.sce b/3871/CH10/EX10.2/Ex10_2.sce new file mode 100644 index 000000000..dc0cec784 --- /dev/null +++ b/3871/CH10/EX10.2/Ex10_2.sce @@ -0,0 +1,27 @@ +//===========================================================================
+//chapter 10 example 2
+
+
+clc;clear all;
+
+//variable declaration
+RA = 2.5; //resistance of ammeter Ω
+RV = 6000; //resistance of voltmeter Ω
+V = 38.4; //voltage in V
+I = 0.4; //current in A
+
+//calculations
+Rx = sqrt(RA*RV); //value of unknown resisitance in Ω
+Rm = V/I; //measured value of unknown resistance in Ω
+Rx1 = V/(I*(1-(V/(I*RV)))); //true value of unknown resistance in Ω
+EA = (1/2)*(1/100)*1; //error on ammeter reading in A
+EV = (1/2)*(50/100); //error on voltmeter reading in V
+PEA = (EA/I)*100; //percentage error at 0.4 A reading in %
+PEV = (EV/V)*100; //percentage error at 38.4 A reading in %
+E = sqrt((PEA^2)+(PEV^2)); //error due to ammeter and voltmeter in %
+AE = (E/100)*Rx1; //absolute error due to ammeter and voltmeter in Ω
+R1 =Rx1+AE; //resistance in Ω
+R2 = Rx1-AE; //resistance in Ω
+
+//result
+mprintf("resistance is specified as %3.3f and %3.3f Ω",R1,R2);
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