Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor 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 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 ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If a small amount of Cu is added to Ni conductor, then 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 Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni 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 Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni will decrease at all temperatures because Cu is a better conductor than Ni ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Nickel is a non-magnetic material. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The residual resistivity of a binary alloy at 0 K is Difference of residual resistivities of component metals Product of residual resistivities of component metals Sum of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals Product of residual resistivities of component metals Sum of residual resistivities of component metals Dependent on the concentration of minor component in the alloy ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a dielectric material is subjected to alternating field, the absorption of energy by the material from the field is given by the imaginary part of polarizability. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. False True False True ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS