A) \[6.6\times {{10}^{-4}}C/{{m}^{3}}\]
B) \[6.6\times {{10}^{-5}}C/{{m}^{3}}\]
C) \[6.6\times {{10}^{-6}}C/{{m}^{3}}\]
D) None of these
Correct Answer: B
Solution :
For one second, distance = Velocity =\[3\times {{10}^{4}}m/\sec \] and \[Q=i\times 1={{10}^{-6}}C\]. Charge density\[=\frac{\text{Charge}}{\text{Volume}}\] \[=\frac{{{10}^{-6}}}{3\times {{10}^{4}}\times 0.5\times {{10}^{-6}}}=6.6\times {{10}^{-5}}C/{{m}^{3}}\].
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