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+// Scilab code Ex10.1 : Pg:405 (2008)
+clc;clear;
+E = 1000; // Electric field applied to sodium chloride crystal, V/m
+P = 4.3e-008; // Polarization, Coulomb per meter square
+epsilon_0 = 8.85e-012; // Permittivity of free space, force per meter
+// Since P = epsilon_0*(epsilon_r-1)*E, solving for epsilon_r
+epsilon_r = 1 + P/(epsilon_0*E); // Relative permittivity of sodium chloride
+printf("\nThe relative permittivity of sodium chloride = %4.2f ", epsilon_r);
+
+// Result
+// The relative permittivity of sodium chloride = 5.86 \ No newline at end of file