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authorpriyanka2015-06-24 15:03:17 +0530
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+// Example 10.31, page no-288
+clear
+clc
+rho=1.43*10^-8//Ohm-m
+ni=6.5*10^28//per m^3
+e=1.6*10^-19//C
+m=9.1*10^-31//Kg
+tau=m/(rho*ni*e^2)
+printf("The relaxation time for electrons in the metal is %.2f *10^-14 s",tau*10^14)