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A11:Physical Properties(Chapter 10) 4.5 points The specific electrical resistivity pof pure copper at an ambient temperature(20C)is given as 1.67x106 Qcm.Calculate the specific electrical conductivity at 100C, assuming that a specific electrical resistivity is 5.929x10Qcm at 400C. R=8.3144J/molK,k=8.6210-5eV/K=1.3810-23J/K,N=6.023-1023 Material Constants for Aluminium: G=27x10NW/m2,a=4.04A,Tm=660℃,p=2.7gcm3,A-27.0g/mol,v=0.34 YSFE=18x10-2J/m2.YGB-0.6J/m2 Material Constants for Copper: G=48x109N/m2,a=3.61ATm=1083℃,p=8.7gcm3,A=63.5g/mol,V=0.35 YSFE-5x10-2J/m2,YGB-0.5J/m2,YSurface=1J/m2 99 A11: Physical Properties (Chapter 10) 4.5 points The specific electrical resistivity ρ of pure copper at an ambient temperature (20°C) is given as 1.67×10–6 Ωcm. Calculate the specific electrical conductivity σ at 100°C, assuming that a specific electrical resistivity is 5.929×10–6 Ωcm at 400°C. R=8.3144 J/molK, k=8.62⋅10-5eV/K = 1.38⋅10-23J/K, NL=6.023⋅1023 Material Constants for Aluminium: G=27×109N/m2, a=4.04Å, Tm=660°C, ρ=2.7g/cm3, A=27.0g/mol, ν=0.34 γSFE=18×10-2J/m2, γGB=0.6J/m2 Material Constants for Copper: G=48×109 N/m2, a=3.61Å, Tm=1083°C, ρ=8.7g/cm3, A=63.5g/mol, ν=0.35 γSFE=5×10-2J/m2, γGB=0.5J/m2, γSurface=1J/m2
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