1 files changed, 13 insertions, 0 deletions
diff --git a/1991/CH9/EX9.12/12.sce b/1991/CH9/EX9.12/12.sce
new file mode 100755
index 000000000..5cb52a443
--- /dev/null
+++ b/1991/CH9/EX9.12/12.sce
@@ -0,0 +1,13 @@
+clc
+clear
+//input
+v=400//pd
+d=4*10^-3 //distance of seperation
+B=0.52//flux density
+na=6*10^23//avagadro number
+//calculation
+x=2*1.6*10^-19/(4*10^-26)//specific charge of ions
+r=1*10^5/(8*10^6*B*B)// path radius
+//output
+printf("the specific charge of ions is %3.0e C/kg",x)
+printf("\n the path radius is %3.3e m",r)