Materials and Components The merger of hole and free electron is called Recombination Free electrons Covalent bonding Thermal energy Recombination Free electrons Covalent bonding Thermal energy ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The superconducting property may be affected and resistivity may increase from zero to a low value The material may become an insulator The superconducting property is not affected The superconducting property may be destroyed The superconducting property may be affected and resistivity may increase from zero to a low value The material may become an insulator The superconducting property is not affected The superconducting property may be destroyed ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is used at high frequencies? Sheet steel cored Iron alloy cored Cast iron cored Ceramic cored Sheet steel cored Iron alloy cored Cast iron cored Ceramic cored ANSWER DOWNLOAD EXAMIANS APP
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 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 remains the same 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 Residual resistivity of Ni at low temperature will increase as Cu atoms act as defect centres Resistivity of Ni remains the same ANSWER DOWNLOAD EXAMIANS APP
Materials and Components A vacant electronic state moves in the same direction as would a positive charge carrier. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. True False True False ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS