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diff --git a/1730/CH2/EX2.3/Exa2_3.sce b/1730/CH2/EX2.3/Exa2_3.sce
new file mode 100755
index 000000000..eec2ba30c
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+++ b/1730/CH2/EX2.3/Exa2_3.sce
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+//Exa2.3
+clc;
+clear;
+close;
+//given data :
+miu_e=7.04*10^-3; //in m^2/V-s
+n=5.8*10^28 ; // in /m^3
+e=1.6*10^-19; // in coulomb
+m=9.1*10^-31;//in kg
+//(i) Relaxation time,
+tau=miu_e/e*m;
+disp("Relaxation time is : "+string(tau)+" second");
+sigma=(n*e*miu_e);
+//(ii) Resistivity of conductor,
+rho=1/sigma;
+disp("Resistivity of conductor is : "+string(rho)+" ohm-meter");
+\ No newline at end of file