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 The number of protons in a copper atom are 29 9 2 11 29 9 2 11 ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess High thermal conductivity and low melting point Low thermal conductivity and high melting point High thermal conductivity and high melting point Low thermal conductivity and low melting pointL High thermal conductivity and low melting point Low thermal conductivity and high melting point High thermal conductivity and high melting point Low thermal conductivity and low melting pointL ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electric dipole moment is expressed in debye unit. False True False True ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called Transition temperature Debye temperature Neel temperature Curie temperature Transition temperature Debye temperature Neel temperature Curie temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The residual resistivity of a binary alloy at 0 K is Difference of residual resistivities of component metals Sum of residual resistivities of component metals Product of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Difference of residual resistivities of component metals Sum of residual resistivities of component metals Product of residual resistivities of component metals Dependent on the concentration of minor component in the alloy ANSWER DOWNLOAD EXAMIANS APP
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