1 files changed, 14 insertions, 0 deletions
diff --git a/3875/CH7/EX7.3/Ex7_3.sce b/3875/CH7/EX7.3/Ex7_3.sce
new file mode 100644
index 000000000..e70daabe9
--- /dev/null
+++ b/3875/CH7/EX7.3/Ex7_3.sce
@@ -0,0 +1,14 @@
+clc;
+clear;
+P=10^-3 //power in watt
+r=6*10^-3 //distance from the source in m
+c=3*10^8 // velocity of light in m/s
+myu_0=4*10^-7 //refractive index
+n=1
+
+//calculation
+
+I=P/(%pi*(r^2)) //intensity in W/m^2
+E=sqrt((2*c*myu_0*I)/n)
+mprintf("The electric field at a point = %1.1e volt/m",E)
+//The answer given in the textbook is wrong.