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 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 Normal to both current and magnetic field ANSWER DOWNLOAD EXAMIANS APP
Materials and Components If the number of atoms per unit volume of a monoatomic gas changes, the dielectric constant still remains constant. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components With increase in temperature, the electrical conductivity would Decrease in metals as well as in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor Decrease in metals but increase in intrinsic semiconductor Increase in metals as well as in intrinsic semiconductor Decrease in metals as well as in intrinsic semiconductor Increase in metals but decrease in intrinsic semiconductor Decrease in metals but increase in intrinsic semiconductor Increase in metals as well as in intrinsic semiconductor ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The residual resistivity of a binary alloy at 0 K is Product of residual resistivities of component metals Difference of residual resistivities of component metals Sum of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals Difference of residual resistivities of component metals Sum of residual resistivities of component metals Dependent on the concentration of minor component in the alloy ANSWER DOWNLOAD EXAMIANS APP
Materials and Components An atom of a rare gas is placed is an electric field E. Then The nucleus will be shifted in the direction of E by an amount which is independent of E. The nucleus will be shifted in a direction opposite to that of E. The nucleus will not be shifted. The nucleus will be shifted in the direction of E by an amount which is proportional to E. The nucleus will be shifted in the direction of E by an amount which is independent of E. The nucleus will be shifted in a direction opposite to that of E. The nucleus will not be shifted. The nucleus will be shifted in the direction of E by an amount which is proportional to E. ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Spontaneous magnetisation is characteristic of ferromagnetic materials. True False True False ANSWER DOWNLOAD EXAMIANS APP
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