Materials and Components If a small amount of Cu is added to Ni conductor, then Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni remains the same Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni remains the same Resistivity of Ni will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Wood is a diamagnetic material. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor Is small as compared to the number of valence electrons Is almost equal to the number of valence electrons Is about half the number of valence electrons Is a very small fraction of the number of valence electrons Is small as compared to the number of valence electrons Is almost equal to the number of valence electrons Is about half the number of valence electrons Is a very small fraction of the number of valence electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The fact that domains exhibits spontaneous magnetisation is Second hypothesis is of Weiss First hypothesis is of Curie Boltzmann’s statistics Curie-Weiss law Second hypothesis is of Weiss First hypothesis is of Curie Boltzmann’s statistics Curie-Weiss law ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The number of protons in a copper atom are 29 9 11 2 29 9 11 2 ANSWER DOWNLOAD EXAMIANS APP
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