A) \[4\,m{{s}^{-1}}\]
B) \[0.4\,m{{s}^{-1}}\]
C) \[4\,cm\,{{s}^{-1}}\]
D) \[0.4\,mm\,{{s}^{-1}}\]
Correct Answer: D
Solution :
Drift velocity, \[{{v}_{d}}=\frac{I}{neA}\] \[=\frac{5.4}{8.4\times {{10}^{28}}\times 1.6\times {{10}^{-19}}\times {{10}^{-6}}}\] \[=0.4\times {{10}^{-3}}\,m{{s}^{-1}}\] \[=0.4\,mm{{s}^{-1}}\]You need to login to perform this action.
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