Four wires are made of the same highly resistive material, cut to the same length, and connected in series. Wire 1 has resistance R1 and cross-sectional area A. Wire 2 has resistance R2 and cross-sectional area 2A. Wire 3 has resistance R3 and cross-sectional area 3A. Wire 4 has resistance R4 and cross-sectional area 4A. A voltage VO is applied across the series, as shown in the figure. Part A Find the voltage V2 across wire 2. Give your answer in terms of VO, the voltage of the battery.