If $3.0 \times 10^{15}$ Electrons Flow Through a Section of a Wire of Diameter

If $3.0 \times 10^{15}$ electrons flow through a section of a wire of diameter $2.0 \mathrm {~mm}$ in $4.0 \mathrm {~s}$ , what is the current in the wire? $\left( e = 1.60 \times 10 ^ { - 19 } \mathrm { C } \right)$

A) $7.5 \times 10 ^ { 14 } \mathrm {~A}$
B) $0.12 \mathrm {~mA}$
C) $0.24 \mathrm {~mA}$
D) $7.5 \times 10 ^ { 7 } \mathrm {~A}$

Correct Answer:

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