Materials and Components The residual resistivity of a binary alloy at 0 K is Difference of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals Sum of residual resistivities of component metals Difference of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals Sum of residual resistivities of component metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The rule that resistivity of conductors can be separated into two parts viz. temperature independent and temperature dependent is known as Curie rule Matthiessen’s rule Debye rule Onne’s rule Curie rule Matthiessen’s rule Debye rule Onne’s rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which inductor is linear? Cast iron cored Iron alloy cored Sheet steel cored Air cored Cast iron cored Iron alloy cored Sheet steel cored Air cored ANSWER DOWNLOAD EXAMIANS APP
Materials and Components When a material is in superconducting state and a magnetic field is applied The material may become an insulator The superconducting property may be destroyed The superconducting property is not affected The superconducting property may be affected and resistivity may increase from zero to a low value The material may become an insulator The superconducting property may be destroyed The superconducting property is not affected The superconducting property may be affected and resistivity may increase from zero to a low value ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Above a certain temperature, the specific heat of a metal becomes constant. This temperature is called Neel temperature Debye temperature Curie temperature Transition temperature Neel temperature Debye temperature Curie temperature Transition temperature 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 In the same direction as current None of these Normal to both current and magnetic field In a direction anti parallel to magnetic field In the same direction as current None of these Normal to both current and magnetic field In a direction anti parallel to magnetic field ANSWER DOWNLOAD EXAMIANS APP
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