// Example 18.26, page no-476
clear
clc

d=2.08*10^3//kg-m^3
wt=32
ep=3.28*10^-40
eps=8.854*10^-15
k=(3*10^28*7*10^-40)/(3*eps)
epsr=2.5812/(1-0.7906)
printf("The dielectric constant of the given material is %.3f",epsr)