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 The merger of hole and free electron is called Recombination Covalent bonding Thermal energy Free electrons Recombination Covalent bonding Thermal energy Free electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called Transition temperature Neel temperature Debye temperature Curie temperature Transition temperature Neel temperature Debye temperature Curie temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is used at high frequencies? Sheet steel cored Cast iron cored Iron alloy cored Ceramic cored Sheet steel cored Cast iron cored Iron alloy cored Ceramic cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. 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 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 will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects Resistivity of Ni remains the same 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 will increase at all temperatures as Cu destroys the periodicity of Ni and acts as defects ANSWER DOWNLOAD EXAMIANS APP
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