Question 3) Electrical resistivity vs composition behavior at room temperature of Cu-Au alloys having two different thermal history are given below. Briefly explain this behavior. 160 140 Quenched 自120 100 80 Annealed 60 40 20 CuzAu 0- 0 10 20 30 40 50 60 70 80 90 100 Composition (at.% Au) Resistivity (n2 m)

Question 3) Electrical resistivity vs composition behavior at room temperature of Cu-Au alloys having two different thermal history are given below. Briefly explain this behavior. 160 140 Quenched 自120 100 80 Annealed 60 40 20 CuzAu 0- 0 10 20 30 40 50 60 70 80 90 100 Composition (at.% Au) Resistivity (n2 m)