Consider Two Copper Wires of Equal Cross-Sectional Area

Multiple Choice

Consider two copper wires of equal cross-sectional area. One wire has 3 times the length of the other. How do the resistivities of these two wires compare?

A) The longer wire has 27 times times the resistivity of the shorter wire.
B) The longer wire has 9 times times the resistivity of the shorter wire.
C) The longer wire has 3 times the resistivity of the shorter wire.
D) Both wires have the same resistivity.