Dielectric Materials

Example number 10.1, Page number 289

In [1]:
#To calculate the electronic polarizability of He atoms

#importing modules
import math

#Variable declaration
epsilon_r = 1.0000684;            #dielectric constant
N = 2.7*10**25;                   #number of atoms(per m**3)
epsilon0 = 8.85*10**-12;          #permittivity of free space

#Calculation
alpha_e = epsilon0*(epsilon_r-1)/N;       #electronic polarizability(Fm**2)

#Result
print "electronic polarizability is",alpha_e,"Fm**2"

electronic polarizability is 2.242e-41 Fm**2

Example number 10.2, Page number 290

In [3]:
#To calculate the electronic polarizability of Argon gas

#importing modules
import math

#Variable declaration
epsilon_r = 1.0024;            #relative permittivity
N = 2.7*10**25;                   #number of atoms(per m**3)
epsilon0 = 8.85*10**-12;          #permittivity of free space

#Calculation
alpha_e = epsilon0*(epsilon_r-1)/N;       #electronic polarizability(Fm**2)

#Result
print "electronic polarizability is",alpha_e,"Fm**2"

electronic polarizability is 7.86666666667e-40 Fm**2
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