(Solved): A copper wire has a circular cross section with a radius of \( 1.46 \mathrm{~mm} \). \( \mathrm{m} ...

A copper wire has a circular cross section with a radius of \( 1.46 \mathrm{~mm} \). \( \mathrm{m} / \mathrm{s} \) (b) For the same wire size and current, find the drift speed (in \( \mathrm{m} / \mathrm{s} \) ) of electrons if the wire is made of aluminum with \( n=2.11 \times 10^{29} \) electrons/m \( { }^{3} \). \[ \mathrm{m} / \mathrm{s} \]