Using information contained in Figures 12.8 and 12.38, determine the electrical conductivi...

Using information contained in Figures 12.8 and 12.38, determine the electrical conductivity of an 80 wt% Cu–20 wt% Zn alloy at –150°C (–240°F).

Figure 12.8 The electrical resistivity versus temperature for copper and three copper–nickel alloys, one of which has been deformed. Thermal, impurity, and deformation contributions to the resistivity are indicated at –100°C.

Figure 12.38 Room-temperature electrical resistivity versus composition for copper–zinc alloys.