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 In a direction anti parallel to magnetic field In the same direction as current Normal to both current and magnetic field None of these In a direction anti parallel to magnetic field In the same direction as current Normal to both current and magnetic field ANSWER DOWNLOAD EXAMIANS APP
Materials and Components In a metal, the valence electrons Are shared by all atoms Are not shared Are shared only between neighbouring atoms Either B or C Are shared by all atoms Are not shared Are shared only between neighbouring atoms Either B or C ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is used at high frequencies? Cast iron cored Ceramic cored Iron alloy cored Sheet steel cored Cast iron cored Ceramic cored Iron alloy cored Sheet steel cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with AC Both AC and DC None of these DC AC Both AC and DC 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 Debye temperature of metals is About 10 K About 200 K About 2 K About 600 K About 10 K About 200 K About 2 K About 600 K ANSWER DOWNLOAD EXAMIANS APP
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