Materials and Components Many compounds also exhibit semiconducting properties. True False True False 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 Dependent on the concentration of minor component in the alloy Sum of residual resistivities of component metals Difference of residual resistivities of component metals Product of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Sum of residual resistivities of component metals Difference of residual resistivities of component metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Which of the following are true for relative dielectric constant?1. It is dimensionless.2. It is equal to 1 for vacuum.3. It is equal to 1 for all substances. 1, 2 and 3 1 and 3 only 1 and 2 only 2 and 3 only 1, 2 and 3 1 and 3 only 1 and 2 only 2 and 3 only 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 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 The material may become an insulator 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 Onne’s rule Matthiessen’s rule Debye rule Curie rule Onne’s rule Matthiessen’s rule Debye rule ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having Permittivity same as that of air High permittivity Low permittivity Permittivity which is neither high nor low Permittivity same as that of air High permittivity Low permittivity Permittivity which is neither high nor low ANSWER DOWNLOAD EXAMIANS APP
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