Materials and Components Piezoelectricity means the slight change in dimensions of a specimen when an electric field is applied. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components At room temperature the number of conducting electrons in an intrinsic semiconductor Is about half the number of valence electrons Is almost equal to the number of valence electrons Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons Is about half the number of valence electrons Is almost equal to the number of valence electrons Is small as compared to the number of valence electrons Is a very small fraction of the number of valence electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components A vacant electronic state moves in the same direction as would a positive charge carrier. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with Both AC and DC AC None of these DC Both AC and DC AC None of these DC ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The materials which become polarized on the application of mechanical stress are called piezoelectric. False True False True 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 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 ANSWER DOWNLOAD EXAMIANS APP
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