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diff --git a/1694/CH6/EX6.14/Ex6_14.sce b/1694/CH6/EX6.14/Ex6_14.sce
new file mode 100644
index 000000000..822069048
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+++ b/1694/CH6/EX6.14/Ex6_14.sce
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+clear;
+clc;
+printf("\nEx-6.14\n");
+//page no.-190
+//given
+v=10^6;.......//avg velocity in m.s
+rho=1.673*10^-8;..//resistivity in ohm m
+n0=8.48*10^28;.........//no. of electrons per unit vol
+e=1.6*10^-19;......//charge in C
+m=9.11*10^-31;......//mass of e in kg
+
+tau=m/(no*e^2*rho)........//mean collission time in s
+
+printf("\nmean collision time is 2.51*10^-14 s\n");
+
+lambda=v*tau............//mean free path in m
+
+printf("\nmean free path 2.51*10^-8 m");
+