[SOLVED] Determining current and drift speed 1. The problem statement, all variables and given/known data The two wires in the above figure are made of the same material. What are the current and the electron drift speed in the 2.0mm-diameter segment of the wire. 2. Relevant equations I = J/A; J = n*e*v_d where n is the density of the conductor in m^-3 and v_d is drift velocity. 3. The attempt at a solution I was able to find the density of the conductor: [tex]n = \frac{I_{1}}{(Aev_{d_1})} = 2*10^{28}[/tex] Also, I reached to this relationship between [tex]I_2[/tex] and [tex]v_{d_2}[/tex]: [tex]I_{2} = 20000v_{d_2}[/tex] What to do next? Appreciate any pointers, and thanks in advance.