1 files changed, 10 insertions, 8 deletions
diff --git a/503/CH12/EX12.2/ch12_2.sci b/503/CH12/EX12.2/ch12_2.sci
index eec86e1de..36e538981 100755
--- a/503/CH12/EX12.2/ch12_2.sci
+++ b/503/CH12/EX12.2/ch12_2.sci
@@ -1,9 +1,11 @@
-//calculate firing angle value
-
-clc;
-Po=15000;
-Ro=1.5;
-Va=sqrt(Po*Ro);
-a=acosd((Va*2*%pi/(3*sqrt(6)*V))-1);disp(a,'firing angle(deg)');
-Ia=Va/Ro;
+//calculate firing angle value
+
+clc;
+clear
+ V = 220;
+Po=15000;
+Ro=1.5;
+Va=sqrt(Po*Ro);
+a=acosd((Va*2*%pi/(3*sqrt(6)*V))-1);disp(a,'firing angle(deg)');
+Ia=Va/Ro;
 Ith=Ia/3;disp(Ith,'avg current through diodes(A)');
 \ No newline at end of file