An extension cord that has a length of $5\mathrm{.}15$m is made from wire with a resistivity of $7\mathrm{.}29\backslash$times $108$m and a diameter of $0\mathrm{.}842$cm$.$What is the resistance, in ohms, of the extension cord? If a current of $2\mathrm{.}11$A passes through the wire, then what is the voltage, in volts, between the ends of the extension cord?