diff options
Diffstat (limited to '3840/CH8/EX8.7')
| -rw-r--r-- | 3840/CH8/EX8.7/Ex8_7.sce | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/3840/CH8/EX8.7/Ex8_7.sce b/3840/CH8/EX8.7/Ex8_7.sce new file mode 100644 index 000000000..04363e9c2 --- /dev/null +++ b/3840/CH8/EX8.7/Ex8_7.sce @@ -0,0 +1,20 @@ +clear +// +// +// + +//Variable declaration +ni=1.5*10**16 //charge carriers(per m**3) +e=1.6*10**-19 //charge(c) +mew_e=0.135 //electron mobility(m**2/Vs) +mew_h=0.048 //hole mobility(m**2/Vs) +N=10**23 //number of atoms(per m**3) + +//Calculation +sigma=ni*e*(mew_e+mew_h) +p=ni**2/N //hole concentration(per m**3) +sigman=N*e*mew_e //conductivity(per ohm m) + +//Result +printf("\n hole concentration is %0.3f *10**9 per m**3",p/10**9) +printf("\n conductivity is %0.3f *10**3 per ohm m",sigman/10**3) |