The number density of free electrons in a copper conductor is 8.5×10²⁸ m^–3. How long does an electron take to drift from one end of a wire 3.0 m long to its other end? The area of the cross-section of the wire is 2.0×10^–6 m² and it is carrying a current of 3.0 A.

1.\(2.7 \times10^{4}\) s
2.\(3.3 \times10^{4}\) s
3.\(2.0 \times10^{3}\) s
4.\(3.9 \times10^{3}\) s