hole concentration of 
electron mobility of 
and hole mobility of 
(Take charge of electron as 
) [JEE Online 08-04-2017]
A)
B)
C)
D)
Correct Answer: B
Solution :
| [b] \[s=e({{n}_{e}}{{\mu }_{e}}+{{n}_{n}}{{\mu }_{n}})\] |
| \[=1.6\times {{10}^{-19}}(5\times {{10}^{18}}\times 2+5\times {{10}^{10}}\times 0.01)\] |
| \[=1.6\times {{10}^{-19}}({{10}^{19}}+0.05\times {{10}^{19}})\] |
| \[=1.6\times 1.05\] |
| \[=1.68\] |
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