From 7f60ea012dd2524dae921a2a35adbf7ef21f2bb6 Mon Sep 17 00:00:00 2001 From: prashantsinalkar Date: Tue, 10 Oct 2017 12:27:19 +0530 Subject: initial commit / add all books --- 377/CH4/EX4.7/4_7.sce | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) create mode 100644 377/CH4/EX4.7/4_7.sce (limited to '377/CH4/EX4.7/4_7.sce') diff --git a/377/CH4/EX4.7/4_7.sce b/377/CH4/EX4.7/4_7.sce new file mode 100644 index 000000000..31fc0a947 --- /dev/null +++ b/377/CH4/EX4.7/4_7.sce @@ -0,0 +1,16 @@ +disp("g(E)=(8*pi*sqrt(2))*((m0/(ħ^2))^(3/2))*sqrt(E)"); +a=9.1*(10^-31); //say m0=a +b=6.626*(10^-34); //say ħ=b +E=5*1.6*(10^-19); +pi=3.14; +f=0.026*1.6*(10^-19); +c=(8*pi*sqrt(2))*((a/(b^2))^(3/2))*sqrt(E); //say gcentre=c +printf('\nthe value of gcentre in (m^-3)*(J^-1) is %f (m^-3)*(J^-1)',c); +d=(c)*(10^-6)*(1.6*(10^-19)); +printf('\nthe value of gcentre in (cm^-3)*(eV^-1) is %f (cm^-3)*(eV^-1)',d); +e=(8*pi*sqrt(2))*((a/(b^2))^(3/2))*sqrt(f); //say f=K*T=0.026eV & e=g at K*T +printf('\nthe value of g at K*T in (m^-3)*(J^-1) is %f (m^-3)*(J^-1)',e); +g=(e)*(10^-6)*(1.6*(10^-19)); +printf('\nthe value of g at K*T in (cm^-3)*(eV^-1) is %f (cm^-3)*(eV^-1)',g); +h=g*0.026; +printf('\nthe volume density of states is %f (cm^-3)',h); \ No newline at end of file -- cgit