where A is the cross-sectional area of the wire, and p is the resistivity of the material. Resistance depends on / and A, but p is a function of the material only Calculate the cross-sectional A, in meters squared, for the copper wire from Part A and the stainless steel wire used in Part C. Use Equation 1-2 and the slopes of each of the graphs from part A and part C to calculate the resistivity p for each wire. Compare each result to its accepted value by calculating the percent error. * *The accepted resistivity for stainless steel is 79 x1060.em and for copper, it is 1 8x1060.cm