Materials and Components The residual resistivity of a binary alloy at 0 K is Sum of residual resistivities of component metals Product of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals Sum of residual resistivities of component metals Product of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The materials which become polarized on the application of mechanical stress are called piezoelectric. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If a small amount of Cu is added to Ni conductor, then 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 will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same 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 will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having Permittivity which is neither high nor low Permittivity same as that of air Low permittivity High permittivity Permittivity which is neither high nor low Permittivity same as that of air Low permittivity High permittivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Components As the viscosity of a liquid increases, the relaxation time Increases Remains constant Decreases First decreases then increases Increases Remains constant Decreases First decreases then increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In van der walls crystals, there exists a high degree of stability of the outer electron shell. False True False True ANSWER DOWNLOAD EXAMIANS APP
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