1 files changed, 25 insertions, 0 deletions
diff --git a/3871/CH3/EX3.13/Ex3_13.sce b/3871/CH3/EX3.13/Ex3_13.sce
new file mode 100644
index 000000000..c76ab75c4
--- /dev/null
+++ b/3871/CH3/EX3.13/Ex3_13.sce
@@ -0,0 +1,25 @@
+//===========================================================================
+//chapter 3 example 13
+clc;clear all;
+
+//variable declaration
+R1    = 1000;          //resistance in Ω
+R2    = 500;           //resistance in Ω
+eR1   = 1;          //error resistance
+eR2   = 1;          //error resistance
+
+//calculations
+R    = (R1*R2)/(R1+R2);        //resistance in Ω
+X    = R1*R2;
+Y    = R1+R2; 
+dX   = (eR1+eR2);            //error in X
+//dY   = (dR1/Y)+(dR2/Y);
+//dY   = (R1/Y)*(dR1/R1)+((R2/Y)*(dR2/R2)
+dY   = ((R1/(Y))*(eR1))+((R2/(Y))*(eR2));      //error in Y
+eP   = dX+dY;                                 //percentage error in equivaent parallel resistance in %
+e    = R*(eP/(100));                      //error(maximum ossible) in equivalent parallel resistance in Ω
+          
+          
+//result
+mprintf("percentage error  = %3.2f percentage",eP);
+mprintf("\nerror in equivalent parallel resistance = %3.2f Ω",e);