Materials and Components The dielectric losses do not depend on frequency. True False True False ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The elements which become superconducting at extremely low temperatures are Ferromagnetic at room temperature Insulators at room temperature Good conductors at room temperature Relatively poor conductors at room temperature Ferromagnetic at room temperature Insulators at room temperature Good conductors at room temperature Relatively poor conductors at room temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Components On the basis of the type of chemical bonds, solids may be classified into Ionic crystals, valence crystals, metal and vander wall crystals Ionic crystal, valence crystals and metals Ionic crystals Ionic and valence crystals Ionic crystals, valence crystals, metal and vander wall crystals Ionic crystal, valence crystals and metals Ionic crystals Ionic and valence crystals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components The residual resistivity of a binary alloy at 0 K is 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 Difference of residual resistivities of component metals Dependent on the concentration of minor component in the alloy Product of residual resistivities of component metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Components For making a capacitor it is better to have a dielectric having High permittivity Permittivity which is neither high nor low Low permittivity Permittivity same as that of air High permittivity Permittivity which is neither high nor low Low permittivity Permittivity same as that of air ANSWER DOWNLOAD EXAMIANS APP
Materials and Components Electrical contact materials used in switches, brushes, relay must possess 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 High thermal conductivity and low melting point ANSWER DOWNLOAD EXAMIANS APP
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