A) \[0.77\times {{10}^{-5}}m\text{/}s\]
B) \[1.77\times {{10}^{-5}}m\text{/}s\]
C) \[2.08\times {{10}^{-5}}m\text{/}s\]
D) \[0.57\times {{10}^{-5}}m\text{/}s\]
Correct Answer: B
Solution :
\[A=0.3{{m}^{2}}\] \[n=2\times {{10}^{25}}\text{/}{{m}^{3}}\] \[q=3{{t}^{2}}+5t+2\] \[i=\frac{dq}{dt}=6t+5=17\] \[i=neA{{v}_{d}}\] Drift velocity, \[{{v}_{d}}=\frac{i}{neA}=\frac{17}{2\times {{10}^{25}}\times 1.6\times {{10}^{-19}}\times 0.3}\] \[=\frac{17}{0.96\times {{10}^{6}}}\] \[=1.77\times {{10}^{-5}}m\text{/}s\]You need to login to perform this action.
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