(Solved): 1. (10) A copper-alloy wire is placed in an electrical circuit; a voltage drop of 300mV, is measure ...

1. (10) A copper-alloy wire is placed in an electrical circuit; a voltage drop of $300\mathrm{mV}$, is measured across the length of the wire as it carries a 5-A current. The dimensions of the copper wire are $2.50\mathrm{mm}$ in diameter, $2.95\mathrm{m}$ in length. Calculate the conductivity of this wire. A. $0.043\Omega$ B. $2.05\Omega$ C. $4.91{\mathrm{m}}^2$ D. $2.86\mathrm{E}+12/\Omega \mathrm{m}$ E. $1.00\mathrm{E}+7/\Omega \mathrm{m}$ 8. $8.01\mathrm{E}+6/\Omega \mathrm{m}$ G. none of the above