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electronics and communication engineering materials and components
1. If a small amount of Cu is added to Ni conductor, then
(A): residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres
(B): resistivity of Ni remains the same
(C): resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni
(D): resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects
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