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clear
//
//
//
//Variable declaration
N=3*10**25 //number of atoms
epsilon0=8.85*10**-12
r=0.2*10**-9 //radius(m)
E=1 //field
//Calculation
p=4*%pi*epsilon0*r**3 //dipole moment per unit electric field(F-m**2)
P=N*p //polarisation(C-m)
epsilonr=1+(4*%pi*r**3*N/E) //dielectric constant
alphae=epsilon0*(epsilonr-1)/N //polarisability(Fm**2)
//Result
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