Materials and Components Hall effect is observed in a specimen (metal or semi conductor) when it is carrying current and is placed in a magnetic field. The resultant electric field inside the specimen is In the same direction as current In a direction anti parallel to magnetic field Normal to both current and magnetic field None of these In the same direction as current In a direction anti parallel to magnetic field Normal to both current and magnetic field None of these 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
Materials and Components The residual resistivity of a binary alloy at 0 K is Sum of residual resistivities of component metals Difference of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals Sum of residual resistivities of component metals Difference of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is linear? Sheet steel cored Air cored Cast iron cored Iron alloy cored Sheet steel cored Air cored Cast iron cored Iron alloy cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The merger of hole and free electron is called Thermal energy Recombination Covalent bonding Free electrons Thermal energy Recombination Covalent bonding Free electrons ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Relatively poor conductors at room temperature Insulators at room temperature Good conductors at room temperature Ferromagnetic at room temperature Relatively poor conductors at room temperature Insulators at room temperature Good conductors at room temperature Ferromagnetic at room temperature ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS