If a small amount of Cu is added to Ni conductor, then
A
Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni
B
Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres
C
Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects
D
Resistivity of Ni remains the same
Correct Answer: Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects
