Materials and Components The residual resistivity of a binary alloy at 0 K is Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals Product of residual resistivities of component metals Sum of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals Product of residual resistivities of component metals Sum 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The resistance of a photoconductor Increases with increase in light intensity Remains constant May increase or decrease with increase in light intensity Decreases with increase in light intensity Increases with increase in light intensity Remains constant May increase or decrease with increase in light intensity Decreases with increase in light intensity ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The fact that domains exhibits spontaneous magnetisation is Curie-Weiss law First hypothesis is of Curie Second hypothesis is of Weiss Boltzmann’s statistics Curie-Weiss law First hypothesis is of Curie Second hypothesis is of Weiss Boltzmann’s statistics ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is used at high frequencies? Ceramic cored Cast iron cored Iron alloy cored Sheet steel cored Ceramic cored Cast iron cored Iron alloy cored Sheet steel cored ANSWER DOWNLOAD EXAMIANS APP
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 None of these Normal to both current and magnetic field In the same direction as current In a direction anti parallel to magnetic field None of these Normal to both current and magnetic field In the same direction as current In a direction anti parallel to magnetic field ANSWER DOWNLOAD EXAMIANS APP
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