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authorpriyanka2015-06-24 15:03:17 +0530
committerpriyanka2015-06-24 15:03:17 +0530
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initial commit / add all books
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+//Ex2_5 Pg-88
+clc
+disp("sigma_n = u_n*e*N_d")
+e=1.6*1e-19 //electron charge
+sigma=5 //conductivity in mho/cm
+un=3850 //mobility of electrons
+Nd=sigma/(e*un) //concentration
+printf("Number density of donor atoms = %.1f*1e16 per cm^3",Nd*1e-16)
+//the answer in the book is wrong the correct answer is 0.8*1e16 per cm^3