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 Normal to both current and magnetic field In a direction anti parallel to magnetic field None of these In the same direction as current Normal to both current and magnetic field In a direction anti parallel to magnetic field None of these In the same direction as current ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Wood is a diamagnetic material. False True False True 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 superconducting property is not affected The superconducting property may be destroyed The material may become an insulator The superconducting property may be affected and resistivity may increase from zero to a low value The superconducting property is not affected The superconducting property may be destroyed The material may become an insulator ANSWER DOWNLOAD EXAMIANS APP
Materials and Components A vacant electronic state moves in the same direction as would a positive charge carrier. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The phenomenon of dielectric hysteresis occurs with Both AC and DC None of these DC AC Both AC and DC None of these DC AC ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The merger of hole and free electron is called Covalent bonding Free electrons Thermal energy Recombination Covalent bonding Free electrons Thermal energy Recombination ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS