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//Example number 7.6, Page number 148
clc;clear;
close;
//Variable declaration
A=6.45*10**-4; //area(m**2)
epsilon0=8.85*10**-12;
d=2*10**-3; //seperation(m)
epsilonr=5; //dielectric constant
N=6.023*10**23; //avagadro number
//Calculation
alpha_e=epsilon0*(epsilonr-1)/N; //polarisability(Fm**2)
//Result
printf("polarisability is %.3e Fm^2",alpha_e)
//answer in the book is wrong
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